Bulk Fuel

We have daily routes for diesel fueling in Portland, Oregon and Vancouver, Washington. If you need diesel, kerosene, gasoline, biodiesel, or renewable diesel in bulk or as a wet-hose fueling service, we are ready for your next project.

Every Question we have been asked about Renewable Diesel
Every Question We Have Been Asked About Renewable Diesel 700 700 Star Oilco

Every Question We Have Been Asked About Renewable Diesel

Renewable Diesel Frequently Asked Questions (FAQ)

Every Question we have been asked about Renewable Diesel

What is renewable diesel?

Renewable diesel is a synthetic diesel fuel, known for it’s lower CO2 characteristics, typically seeing purity and real world performance response superior to petroleum diesel fuel.  Renewable diesel is a next generation hydrocarbon diesel biofuel made by either the Fischer-Tropsch or Hydrogenation processes.

Hydrogenated renewable diesel is made by taking fats, oils, and greases by use of a hydro-treater.  The biomass based oil or fat is cracked and reformed in the presence of hydrogen and  catalyst forming a hydrocarbon diesel molecule.

Fischer-Tropsch renewable diesel is used by converting any btu dense feedstock (wood waste, woody biomass, municipal garbage, coal, and an endless list of low value waste products into syngas, then converting this into a wax that is reformed into hydrocarbon diesel.

Can Renewable Diesel be used as Heating Oil?

Yes.  Renewable Diesel is a synthetic hydrocarbon diesel fuel.  It can be used interchangeably with petroleum diesel products of similar grade. Heating Oil is typically number 2 diesel which is the same specification as Dyed R99 Renewable Diesel (or blends of Renewable Diesel with petroleum diesel).   Star Oilco now offers R99 Heating Oil delivered in the Portland metro region area of Oregon.

Most modern oil heat appliances use a Becket Burner.  For more on heating fuel compatibility with oil furnaces and oil burning appliance please see “Alternative Fuels and Becket Burners” for more information.

Why do people use renewable diesel over petroleum diesel?

Fleet managers operating R99 Renewable Diesel report a lower mechanical cost of operation using the fuel.  Beyond the immediate benefit of R99 cutting CO2 emissions by half or more, fleets experience performance benefits from the fuel.  Anecdotally the big savings are seen the the performance of Tier 4 Emission systems on modern diesel seeing far less wear of the Diesel Particulate Filter system as well as far fewer regenerations of the system.  Additionally Renewable Diesel is a very clean and dry diesel fuel improving the storage stability, field operation, and general predictability of the fuel’s performance.

What is renewable diesel made of?

Renewable diesel can be made from a host of things, usually a low value waste product. The most common feedstock used currently is waste vegetable oil, wastes from animal rendering, and other biologically derived oils. Processes using bio-oils are following a Hydrogenation process to turn low value waste oils into high value diesel and jet fuel.

Chevron Renewable Energy Group and Diamond Green Diesel (Diamond Green is in a joint venture with Valero) are the largest producer of renewable diesel with their REG Ultra Clean Diesel product in the United States. Neste is the largest producer of renewable diesel internationally, with its “Neste My” product.  being the two largest producers of low CO2 bio-oil derived renewable diesel fuels.

Major petroleum refiners have also turned around existing petroleum refineries into Renewable Diesel Refineries to produce this in demand low CO2 fuel. HF Sinclair , Marathon, Phillips 66, and Montana Renewables. There are quite a few newer Renewable Diesel projects planned and in progress around the United States as well as in the Pacific Northwest.

Other refiners of renewable diesel (on a much smaller scale of production) are using a Fischer-Tropsch process with wood waste, sorted higher grade municipal garbage, and other high btu value carbon based waste products.  Many expect this to technology to be the future of all diesel and jet fuel refining turning refuse into fungible low carbon fuel.

What is renewable hydrocarbon diesel?

Renewable hydrocarbon diesel is a synthetic diesel fuel made from non-petroleum feedstocks like vegetable oil, animal fats, municipal waste, agricultural biomass, and woody biomass. It is characterized by having a low CO2 and renewable resource for its feedstock and is made without crude petroleum, coal, or natural gas as a direct feedstock input in the refining process.

How do they make renewable diesel?

Renewable diesel is made by several processes. If you are buying renewable diesel, it is probably from a Hydrogenation process used by Renewable Energy Group and Neste for their products. Other smaller volume producers are using a Fischer-Tropsch process or Fast Pyrolysis. Both processes involve taking energy dense molecules, cracking those molecules under heat and pressure, then reforming them in the presence of a catalyst and added hydrogen, which forms a renewable diesel molecule.

Is renewable diesel a lower carbon fuel compared to petroleum diesel?

Yes, to this point all renewable diesel made from renewable feedstocks have appeared to be a lower CO2 fuel compared to petroleum diesels. The California Air Research Board in particular has done research on this in depth.

The low CO2 lifecycle emissions of Renewable Diesel also is tracked closely and supervised by California’s Low Carbon Fuel Standard, Washington’s Low Carbon Fuel Standard, and Oregon’s Clean Fuels Program. The highest value markets for low CO2 fuels in the United States are California and Oregon, which both have mechanisms that track and price the CO2 intensity of diesel fuels as well as the sustainable lower CO2 substitutes and blend-stocks that can go in those diesels. They track, rate, and determine the carbon intensity of the fuels providing a neutral and scientifically defensible number for CO2 reduction.

Is renewable diesel available in Oregon?

Renewable diesel is readily available for delivery from Star Oilco throughout the Pacific Northwest via 10,000 gallon volumes of bulk delivery.   Star Oilco is also offering bulk delivery of any size and mobile onsite fueling service within 100 miles of the Portland, Oregon market.

Star Oilco has R99 Renewable Diesel available with a Star Oilco CFN Cardlock card in Portland, Oregon.

What is the difference between biodiesel and renewable diesel?

Biodiesel and renewable diesel are very different fuels made with very different processes. In a nutshell, biodiesel is made with a simple chemical reaction that turns vegetable and animal fats into fuel. Renewable diesel is made from far more complicated process where vegetable and animal fats (as well as other feedstocks) are cracked on a molecular level and built back into synthetic diesel fuel.

What is the difference between renewable diesel and Sustainable Aviation Fuel?

The difference between the fuels is the specific gravity and general specification for what the fuel is used for. Jet fuel, or Sustainable Aviation Fuel, and on-road diesel fuel are different fuels and therefore have different specifications. Renewable diesel is typically referring to a #2 diesel specification for on road diesel use.

Sustainable Aviation Fuel or “SAF” is typically referring to “Jet A” or “JP8” jet fuel specification for fuel. This is a #1 diesel range fuel with use and handling requirements that are far more stringent than for on-road or off-road diesel fuels. Renewable jet fuel can be used as a kerosene or #1 diesel fuel but renewable diesel cannot be used as a jet fuel.

Where do I buy renewable diesel in Oregon or Washington?

Renewable Diesel is currently available for bulk delivery and mobile onsite fueling. It will soon be offered at commercial cardlock in the Portland area. It is being sold as R99 and as Ultra Clean Diesel, which is a mixture of biodiesel, renewable diesel, and petroleum diesel.

What is R99?

R99 stands for 99% renewable diesel and 1% petroleum diesel.  Federal rules over alternative diesel fuels made fuels requires that manufacturers of non-petroleum derived diesel fuels must blend a minimum 1% petroleum with the fuel to generate a Renewable Industry Number or “RIN” under the US Federal Renewable Fuel Standard. Additionally there are other incentives that require a “blender of record” to receive these tax credits.

Is renewable diesel being made in Oregon?

As of Spring 2022, renewable diesel is not being manufactured in Oregon. There is a major projects underway, Next Renewable Fuels in Port Westward, Oregon.

What is renewable diesel made from?

Renewable diesel can be made from many energy dense carbon based material.  By volume of produced product sold in the United States, vegetable oils and animal fat-based wastes are the most common feedstock. Woody biomass, agricultural wastes, and sorted municipal wastes are also sources for renewable diesel production.

Is renewable diesel made from palm oil?

Palm oil can be used as a feedstock for renewable diesel. There are producers who use palm oil as a feedstock. In the United States, feedstocks and carbon intensity are tracked closely under both Oregon and California’s fuel programs.  You can determine if a supplier is using palm oil as a feedstock through these regulated pathways.

How much does renewable diesel cost?

This is a tough question to answer given there are several markets intersecting.  From the feedstocks to the market demand for the finished product as well as both California and Oregon’s Clean Fuel Standards which place a price on the CO2 intensity of the fuel which reduces the cost of the fuel if consumed in Oregon and California.

It has consistently been trending between the same cost and over $1 a gallon higher than petroleum diesel depending on the state, you buy renewable diesel in. In California, renewable diesel is very close to petroleum diesel depending on the value of CO2 credits for lower-carbon fuels. In Oregon, it has consistently been between $.05 to $.80 a gallon higher than diesel also depending on the value of CO2 abatement associated with the fuel and what these carbon credits are trading for.

When petroleum diesel costs are high Renewable Diesel tends to be more competitive with petroleum diesel.  When petroleum diesel is below $3 a gallon the cost of Renewable Diesel by comparison is usually higher unless CO2 credits are in higher than normal demand for Clean Fuels Program demands.

Can you mix petroleum diesel and renewable diesel?

Yes. Renewable diesel and petroleum diesel can be blended in any mixture without worry. They are drop-in substitutes for each other in your fleet’s use.  Renewable Diesel is a drop-in fuel. It is a hydrocarbon diesel that will work mixed with diesel or biodiesel blends of petroleum diesel.

More questions coming… or if you would like to learn more contact us.

Contact Form

  • This field is for validation purposes and should be left unchanged.
Backup Generator Fuel 150 150 Star Oilco

Backup Generator Fuel

Star Oilco Generator Refueling Service

Make sure your generator fuel tank is filled before the power outage strikes.


Commercial Fleet Fueling in Portland


Remember that ordering diesel for your generator is a specialized service.

You want to stabilize and treat your diesel for generators and other back up equipment.

Order fuel treated for long term storage!

We often receive questions about backup generators, backup water pumps, and other emergency equipment. Fueling these critical pieces of equipment is a special kind of fueling service but we’re here to answer all your questions.

Generator Fuel is a specially treated oxidative stabalized off-road fuel designed to store for years.

Fuel for a backup generator is a specialized product. Besides the fuel, the service itself takes a vendor who understands your needs and can keep you up and running in an emergency.

Generators take off-road diesel, of course, but you want an ultra low sulfur diesel to ensure it works with modern emission systems. Some companies may deliver a higher sulfur heating oil product that looks the same but can foul the emission systems of your equipment.

Backup Generator Fuel in Portland

Beyond just the service provided by a truck and driver, you also want a vendor who offers a fuel stabilizer and biocide for the special long term storage needs of your backup generator. Star Oilco recommends you add a biocide and long term storage stabilizer to your fuel to ensure it is good whenever you need it. We use Valvtect Bioguard Plus 6 for generators, emergency water pumps, backup boiler fuel, and other long term storage purposes. This product kills any existing biological growth and stabilizes your fresh diesel fuel for long term storage. Make sure your diesel is ready the next time you need backup power.

As a complimentary service to our customers, Star Oilco will also test fuel for its quality. If you want to confirm fuel quality at the time of a top off, let us know and we will ensure the driver has a sample kit to get your backup fuel tested for peace of mind.

Feel free to message us if you need a backup tank filled. If you are in charge of Corporate Fueling, please call with any questions you may have.

Read more about stabilizing your generator fuel for long term storage.

Keep it simple with Star Oilco. We make it easy for you to be prepared.

Contact Form

  • This field is for validation purposes and should be left unchanged.
Diesel 1 vs Diesel 2 150 150 Star Oilco

Diesel 1 vs Diesel 2

Diesel 1 and Diesel 2 can often bring confusion when it comes to understanding what the differences are between them. Consumers can have confusion about which one is best for their equipment or their business. Whether they’re looking for improvements in quality, igniting quickly with its high cetane rating for easy starts in cold weather or ensuring overall efficiency with engine performance and lower maintenance needs. We will explore the differences between Diesel 1 and Diesel 2 and help you understand the benefits of each. 

Key distinctions between the properties of Diesel 1 and Diesel 2 

Before you invest your hard-earned money in fuel that might not be suitable or, even worse, could harm your vehicles and equipment, let’s clear the air. Let’s simplify the differences between Diesel 1 and Diesel 2 in a way that’s easy to follow and gives you the confidence you need. 

Sulfur Content

Diesel 1: Lower sulfur content, reducing sulfur dioxide emissions and aligning with environmental standards.

Diesel 2: Higher sulfur content for specific applications with advanced emissions control. 

Cetane Number

Diesel 1: Boasts a higher cetane number (ignition quality of diesel fuel), ensuring better ignition and smoother combustion, especially in cold weather.

Diesel 2: It has a lower cetane number and is optimized for slightly delayed ignition in engines designed for this grade. 


Diesel 1: It generally has a lower viscosity, facilitating smoother fuel flow and distribution. 

Diesel 2: Its higher viscosity may require specialized fuel systems designed to handle its thicker consistency, such as generator power plant engines or industrial machinery. 

Cold Flow Properties

Diesel 1: It excels in cold climates because it contains kerosene and lacks paraffin, which prevents the diesel from gelling in colder temperatures. So, it’s best for the residents of the coldest regions.

Diesel 2: This fuel needs additional winterization measures in extremely cold temperatures, like mixing Diesel 1 (20%) with Diesel 2 (80%) and additives to lower the viscosity of Disesel 2. But make sure that your vehicle’s engine is capable of handling it.


Diesel 1: Contains extra constituents that improve cleanliness and lubrication and reduce rusting effects due to corrosion inhibitors in the engine. It also has demulsifiers that separate water from the fuel system and prevent engine problems. 

Diesel 2: Generally has fewer additives; common ones decrease viscosity for more accessible engines starting in cold conditions. Due to the higher wax content, some other chemicals are infused within it to stop the accumulation of wax sediments. 

Engine Wear and Tear

Diesel 1: Gentle on engines with low wax content, anti-corrosive additives, and high cetane rating, resulting in less wear, lower maintenance, and a longer lifespan. 

Diesel 2: Causes more wear, but viscosity contributes to enhanced lubrication and mitigates engine damage by reducing friction. 


Diesel 1: Less noisy due to its high cetane rating, ensuring rapid ignition and reducing the usual knocking sound linked with diesel engines. 

Diesel 2: Tends to be noisier due to a lower cetane rating and a longer combustion process. Results in higher levels of heat and pressure for a louder engine. 

Smoke Release

Diesel 1: Emits less smoke due to quick ignition and cleaner exhaust due to lower wax levels, demulsifiers, and other additives that cause smoke. 

Diesel 2: Results in smokier emissions because of a lower cetane rating, slower ignition, and increased accumulation of unburned fuel. 

Fuel Energy Efficiency 

Diesel 1: Slightly lower fuel economy (miles per gallon) than Diesel 2 due to its lighter grade and lower heating value. 

Diesel 2: It burns more slowly and proves to be the superior choice for extended highway travel, optimizing efficiency and minimizing refueling stops.


Diesel 1: It comes at a slightly higher cost because it is enhanced with lubricants, reducing friction for efficient fuel system operation. The premium diesel D1 has more benefits, like reduced repairs.  

Diesel 2: Represents a more economical choice. Despite lacking premium additives, more miles per gallon and a higher heating value make it the least expensive option at the pump. 

Finding the Right Fuel Fit: Diesel Decisions 

Selecting the appropriate diesel for your vehicle is crucial, and it all comes down to your vehicle type, usage, and environmental conditions for optimal performance. Diesel #2 is cost-effective and versatile for everyday commuting, while Diesel #1 is ideal for high-performance or newer engines due to its higher cetane rating.  

Trucks and heavy-duty vehicles benefit from Diesel #2’s versatility and cost savings. In fleet management, Diesel #2 is practical for various vehicles. Diesel #1 is the choice for lower emissions compliance in environmentally strict areas. Always check your vehicle manual for specific recommendations. 

Diesel 1 and Diesel 2 bring unique qualities to engines and the environment. Diesel 1 is cleaner and ideal for high-performance engines and excels in colder climates. Diesel 2, versatile and cost-effective, suits everyday driving and heavy-duty vehicles.  

Understanding these distinctions empowers you to make informed diesel decisions, ensuring engine longevity and environmental responsibility. 

If you have any questions about different fuels, feel free to give us a call and speak to one of our fuel experts.  


The Pros and Cons of Renewable Diesel in Your Diesel Truck  150 150 Star Oilco

The Pros and Cons of Renewable Diesel in Your Diesel Truck 


The Pros and Cons of Renewable Diesel in Your Diesel Truck 

 As the world continues to become more aware of sustainable alternatives, renewable biodiesel (otherwise known as R99) has emerged as a promising solution to reduce carbon emissions in the transportation sector. Diesel truck owners, for example, may wonder whether they can switch to renewable diesel and contribute to a greener future as the city of Portland will be enforcing new restrictions and limitations on carbon emissions. Here is more information on the feasibility of using renewable diesel in diesel trucks and looking at the benefits and possible challenges. By understanding the advantages and limitations, you can make an informed decision about integrating this renewable fuel into your trucking operations.


1. Understanding Renewable diesel:

Renewable diesel is a clean-burning alternative fuel derived from natural sources such as vegetable oils, animal fats, and recycled cooking oil. It is produced through a process called transesterification, where the oils or fats are chemically reacted with alcohol to separate the glycerin from the fatty acids, resulting in renewable diesel. This sustainable fuel can be used in diesel engines with little to no modifications, making it a viable option for diesel truck owners. 


2. Environmental Benefits of Renewable Diesel:

Renewable diesel (known as R99) has significant environmental benefits. Renewable diesel reduces greenhouse gas emissions, such as carbon dioxide, sulfur dioxide, and particulates matter, compared to traditional diesel. It has lower levels of harmful pollutants, contributing to improved air quality and reduced smog formation. Additionally, renewable diesel is biodegradable, non-toxic, and significantly minimizes net carbon dioxide emissions over its lifecycle, making it a valuable tool in mitigating climate change. 


3. Compatibility and Performance:

While renewable diesel is compatible for diesel engines as a drop in solution, its essential to consider any factors before switching. Renewable diesel has a slightly lower energy content than regular diesel, which can result in a slight decrease in fuel economy.


4. Availability and Infrastructure:

Is renewable diesel readily available? While renewable diesel is becoming more widespread, its availability may vary depending on your location. Star Oilco offers delivery of renewable diesel (R99) to the Portland, Oregon surrounding area as well as Vancouver, Washington. You can reach out to us to get a quote based on your location and service needs. 

Renewable diesel offers a promising alternative for diesel truck owners who want to reduce their environmental impact. With its environmental benefits, compatibility with diesel engines as a drop-in solution, and ongoing availability improvements, renewable diesel presents a viable solution to achieve sustainable transportation and it contributes to a greener future across the Pacific Northwest.

Call Star Oilco today to discuss using Renewable Diesel as a drop-in solution for your diesel trucks.

Stay in the know and sign up for our monthly newsletter

Renewable Diesel vs Biodiesel 150 150 Star Oilco

Renewable Diesel vs Biodiesel

What’s the difference and how do they compare in price? 

If you are looking for a cleaner and greener alternative to diesel fuel, you might have come across two options: renewable diesel and biodiesel. Both fuels are made from organic sources, such as vegetable oils and animal fats, but they have different production processes and properties. In this blog post, we will compare renewable diesel and biodiesel in terms of their pros and cons, as well as their prices and incentives in Oregon. 

What is Renewable Diesel? 

Renewable diesel is a fuel that is chemically identical to petroleum diesel, but it is made from renewable raw materials through a process called hydrotreating. Hydrotreating removes impurities and oxygen from the feedstock, resulting in a pure and refined fuel that can be used in any diesel engine without modifications or blending. Renewable diesel (R99) has a high cetane number, which means it ignites easily and burns efficiently. It also has a low cloud point, which means it can withstand cold temperatures without gelling or clogging filters. 

What is Biodiesel? 

Biodiesel is a fuel that is made from renewable raw materials through a process called transesterification. Transesterification converts the feedstock into fatty acid methyl esters (FAME), which are then blended with petroleum diesel at various ratios. Biodiesel can be used in most diesel engines, but it may require some modifications or adjustments depending on the blend level and the engine type. Biodiesel has a lower cetane number than renewable diesel, which means it may not ignite or burn as well. It also has a higher cloud point than renewable diesel, which means it may gel or clog filters in cold weather. 

The cost of renewable diesel and biodiesel depends on various factors, such as the type and availability of feedstock, the production process, the market demand, and the government incentives. In general, renewable diesel is more expensive than biodiesel, as it requires more complex processing and higher quality feedstock. According to the U.S. Energy Information Administration (EIA), the average wholesale price of renewable diesel in California was $3.06 per gallon in October 2021, while the average wholesale price of biodiesel was $2.76 per gallon in the same month. However, both renewable diesel and biodiesel can benefit from federal RIN’s and state credits such as the low carbon fuel standards, which can lower their effective prices and make them more competitive with petroleum diesel. As of July 10th of 2023 renewable diesel (R99) in Portland Oregon was 60 cents higher than biodiesel (B99). 

 Renewable Diesel vs Biodiesel Carbon Intensity 

According to CARB, the carbon intensity of biodiesel ranges from 14.85 to 67.45 gCO2e/MJ and, renewable diesel ranges from 15.84 to 62.86 gCO2e/MJ, depending on the feedstock and production pathway. The lowest carbon intensity for biodiesel is achieved by using waste cooking oil as the feedstock and renewable methanol as the transesterification agent. The highest carbon intensity is associated with using soybean oil as the feedstock and fossil-based methanol as the transesterification agent. The lowest carbon intensity for renewable diesel is achieved by using waste cooking oil as the feedstock and renewable hydrogen as the hydrotreating agent. The highest carbon intensity is associated with using soybean oil as the feedstock and fossil-based hydrogen as the hydrotreating agent. 


Pros and Cons of Renewable Diesel and Biodiesel 

Both renewable diesel and biodiesel have some advantages and disadvantages compared to petroleum diesel. Here are some of the main pros and cons of each fuel:  

Renewable Diesel Pros: 

– Reduces greenhouse gas emissions by up to 75% compared to petroleum diesel 

– Reduces tailpipe emissions of particulate matter, nitrogen oxides, carbon monoxide, and hydrocarbons 

– Improves engine performance and efficiency with fewer regeneration cycles of the emissions system 

– Compatible with existing infrastructure and vehicles 

– Biodegradable and nontoxic 

Renewable Diesel Cons: 

– More expensive than petroleum diesel 

– Limited availability and supply 

– May increase emissions of sulfur dioxide 

Biodiesel Pros: 

– Reduces greenhouse gas emissions by up to 78% compared to petroleum diesel 

– Reduces tailpipe emissions of particulate matter, carbon monoxide, and hydrocarbons 

– Biodegradable and nontoxic 

– Supports domestic agriculture and energy security 

 Biodiesel Cons: 

– May increase emissions of nitrogen oxides 

– May cause engine problems such as injector coking, filter plugging, corrosion, and reduced lubricity 

– May degrade over time or when exposed to water or microbes 

Oregon Prices and Incentives for Renewable Diesel and Biodiesel 

Oregon is one of the states that has adopted a Clean Fuels Program (CFP), which aims to reduce the carbon intensity of transportation fuels by 10% by 2025. The CFP creates a market for low-carbon fuels such as renewable diesel and biodiesel by requiring fuel suppliers to either blend them with petroleum diesel or buy credits from low-carbon fuel producers. The CFP also provides incentives for consumers to use low-carbon fuels by reducing their fuel taxes. 

According to the Oregon Department of Environmental Quality (DEQ), the average price of diesel in Oregon as of November 2021 was $3.87 per gallon. The average price of biodiesel blends ranged from $3.88 per gallon for B5 (5% biodiesel) to $4.01 per gallon for B20 (20% biodiesel). The average price of renewable diesel was $4.05 per gallon. As of July 2023 the price of renewable diesel (R99) in Oregon was 50 to 60 cents higher than biodiesel (B99). 

The DEQ also provides a Fuel Cost Calculator that allows consumers to compare the costs and benefits of different fuels based on their vehicle type, fuel efficiency, annual mileage, fuel price, carbon intensity, and tax rate. According to the calculator, using renewable diesel instead of petroleum diesel would save an average consumer $34 per year in fuel costs and reduce their carbon emissions by 1.6 metric tons per year. Using biodiesel instead of petroleum diesel would save an average consumer $12 per year in fuel costs and reduce their carbon emissions by 0.8 metric tons per year. 

Renewable diesel and biodiesel are both viable alternatives to petroleum diesel that can help reduce greenhouse gas emissions and support renewable energy sources. However, they also have some trade-offs in terms of cost, availability, performance, and emissions. Consumers should consider their vehicle type, driving habits, fuel preferences, and environmental goals when choosing between these fuels. Oregon offers some incentives and programs to encourage the use of low-carbon fuels such as renewable diesel and biodiesel, which can help consumers save money and reduce their carbon footprint. 

Alternative Fuels in Portland, OR
How Renewable Diesel Is Made 940 788 Star Oilco

How Renewable Diesel Is Made

Renewable diesel is a type of biofuel

Renewable diesel is a type of biofuel that is chemically similar to petroleum diesel and can be used in any diesel engine. It can be produced from various feedstocks, such as vegetable oils, animal fats, waste cooking oil, and algae. Renewable diesel can reduce greenhouse gas emissions and improve air quality compared to petroleum diesel⁵. 

The most common way to produce renewable diesel is by hydroprocessing, which involves reacting the feedstock with hydrogen under high temperature and pressure in the presence of a catalyst. This process removes oxygen, sulfur, nitrogen, and other impurities from the feedstock and converts it into hydrocarbons that are similar to those in petroleum diesel⁴⁵. Hydroprocessing is also used in petroleum refineries to upgrade crude oil into various fuels, such as renewable diesel. 

Other ways to produce renewable diesel include pyrolysis, which involves heating the feedstock in the absence of oxygen to produce a liquid bio-oil that can be further upgraded into renewable diesel; gasificationmar, which involves converting the feedstock into a mixture of carbon monoxide and hydrogen (syngas) that can be synthesized into renewable diesel; and biochemical and thermochemical technologies, which involve using enzymes, microorganisms, or catalysts to convert the feedstock into renewable diesel⁴. 

According to the U.S. Energy Information Administration (EIA), U.S. production capacity for renewable diesel could increase significantly through 2024, based on several announced and developing projects. This growth is driven by higher state and federal targets for renewable fuel, favorable tax credits, and the conversion of existing petroleum refineries into renewable diesel refineries². As of the end of 2020, U.S. renewable diesel production capacity totaled nearly 0.6 billion gallons per year (gal/y), or 38,000 barrels per day (b/d). Several projects currently under construction could increase this capacity by 2.4 billion gal/y; proposed and announced projects would add another 1.8 billion gal/y by 2024. If all projects come online as intended, U.S. renewable diesel production would total 5.1 billion gal/y (330,000 b/d) by the end of 2024². 

Globally, over 1.45 billion gallons of renewable diesel are produced annually and are forecasted to grow up to 3.34 billion gallons in 2024. Neste, a Finland based petroleum refining company, is currently dominating the production of renewable diesel¹. Other major producers include Diamond Green Diesel in the U.S., ENI in Italy, Total in France, and Preem in Sweden¹. 


(1) Renewable Diesel – Alternative Fuels Data Center.

(2) Renewable Diesel – an overview | ScienceDirect Topics. 

(3) U.S. renewable diesel capacity could increase 

(4) Renewable Diesel: The Fuel of the Future – FutureBridge.

(5) Overview of the Production Capacity of U.S. Renewable Diesel Plants

Star Oilco Truck Fleet
Benefits of On-Site Mobile Fueling for Truck Fleets 1024 768 Star Oilco

Benefits of On-Site Mobile Fueling for Truck Fleets

For companies that operate truck fleets, managing fuel consumption is a critical aspect of their operations. Refueling logistics and costs can pose significant challenges. A fuel delivery truck service is also known as fleet fueling, mobile fueling or wet hosing. By incorporating a fleet fueling service that fills their trucks every morning, companies will reap numerous benefits and eliminate additional costs. Through this approach of fleet fueling, efficiency will be improved. Costs are reduced and operations are streamlined. Ultimately, this improves profitability and sustainability for the company and the environment. 

Enhanced Operational Efficiency 

Having a fuel delivery truck fill a company’s truck fleet each morning can significantly enhance operational efficiency. Instead of requiring drivers to waste valuable time searching for gas stations and waiting in queues, the fleet is primed and ready for their daily routes. This allows for optimized productivity as drivers can focus on their core responsibilities through wet hose fueling.

Furthermore, with a centralized refueling system, companies can eliminate the risk of trucks running low on fuel during the day. This minimizes unforeseen delays, ensuring timely deliveries and improving customer satisfaction. The streamlined refueling process also reduces administrative burdens, eliminating drivers to track fuel expenses and submit reimbursement forms.  

Cost Savings and Budget Predictability

Implementing a fuel delivery truck service offers substantial cost savings for companies with truck fleets. By purchasing fuel in bulk, companies can negotiate favorable pricing terms with the fuel supplier. It allows companies to secure discounts or fixed rates. Fuel costs predictability allows for better budget planning, avoiding fluctuating fuel prices.

By eliminating the need for drivers to refuel at public gas stations, the company can prevent unauthorized fuel purchases, fuel theft, and the potential for inaccurate expense reporting. The fuel delivery service ensures that fuel consumption is closely monitored, minimizing fuel misuse.  

In addition, having a dedicated fuel delivery truck also reduces the wear and tear on company trucks caused by constant stops at gas stations. This reduces maintenance and repair costs in the long run. With regular fuel top-ups in the morning, trucks operate at optimal fuel levels, improving engine performance and extending their lifespan.  

Environmental Sustainability

By consolidating fuel delivery through a dedicated truck, companies can contribute to environmental sustainability. Bulk fuel delivery reduces the number of individual fuel stops to gas stations, resulting in reduced carbon emissions. The streamlined fleet fueling process also minimizes fuel spills and or possible leakage from conventional methods. This solution preserves air and soil quality. 

Furthermore, adopting a fuel delivery service encourages alternative and cleaner fuels. Companies can explore options like biodiesel or electric vehicles, and the fuel delivery truck can be equipped to accommodate these eco-friendly fuel sources. By transitioning to greener fuels, companies can reduce their carbon footprint and align with environmental regulations and customer preferences.  

For companies with truck fleets, integrating a fuel delivery truck service offers numerous advantages. Moreover, the streamlined refueling process through fleet fueling or mobile fueling enhances operational efficiency. Your truck fleets will benefit from fleet fueling by eliminating your employees wasting time on the clock with refueling stops. You will also benefit from the minimized administrative burdens. Cost savings are achieved through bulk purchasing, predictable budgeting, and reduced maintenance expenses. This approach contributes to environmental sustainability by reducing carbon emissions and promoting cleaner fuel alternatives.  

By optimizing fuel management and leveraging the many benefits of fuel delivery, companies can drive their fleet operations to new levels of productivity, cost-effectiveness, and environmental responsibility. Embracing this innovative solution not only benefits the company itself but also enhances customer satisfaction and positions the company as a leader in sustainable business practices. 

Emergency Back-up Fuel 150 150 Star Oilco

Emergency Back-up Fuel

Do you need your Emergency Back Up generator filled with diesel?

We deliver dyed diesel and will keep your equipment full for you.

When the Power goes out, we have diesel ready to keep your back up generator fueled.  We can also set up automatic fueling with confirmation for your facility team’s needs.

Back-up Fuel Tank

We have drivers on the road today with diesel.

When was the last time you had your generator filled with stabilized diesel?  We deliver off road diesel treated for long term storage.

Open an account with Star Oilco today and prepare for the next power outage.

Recent heat waves might have caused power outages.  Make sure your generators are full for this winter now.

Are you prepared for the next emergency? Have you filled up since the last time?  Keeping your back-up generator fueled could be the difference between an inconvenience and a disaster.  Stay ahead of the next emergency and re-fuel now.

Remember that ordering diesel for your generator is a specialized service, we will make it easy for you.

Getting the fuel for your generator or emergency equipment is only one part of the problem.  How you store it can be just as important.  This is why its important to work with a company that can help you.

You want to stabilize and treat your diesel for generators and other back up equipment.

Order fuel treated for long term storage!

Star Oilco is an expert at fueling back-up generators, emergency water pumps, and other long term off-road diesel storage requirements. We understand, that in the Pacific Northwest, biodiesel blending is required by state laws. Biodiesel needs an extra layer of care when stored as a back-up fuel.Filling a Generator in the Snow

Most off-road diesels and heating oils are ultra low sulfur diesel containing at least 5% quantity of biodiesel.  This means long term storage requires a proactive approach.  You can’t just hope it works, or wait to see if the fuel will burn after years of storage.

Proper Generator Fuel is a specially treated oxidative stabilized off-road fuel designed to store for years.

Fueling a backup generator is a specialized product. The fueling service requires a vendor who understands your needs and keeps you up and running in an emergency.

Generators take off-road diesel, of course, but you want an ultra low sulfur diesel to ensure it works with modern emission systems. Some companies deliver higher sulfur product that look the same but foul the emission systems of your equipment.

Beyond the service provided, you also want a vendor who offers a fuel stabilizer and biocide for the special long term storage needs of your backup generator. Star Oilco recommends you add a biocide and long term storage stabilizer to your fuel to ensure it is good whenever you need it.

Use additives designed to prolong the life of your emergency diesel fuel.

Biocides prevent the growth of biological activity in the tank. In scenarios whcontaminated_dieselere micro-organisms like algae, bacteria, yeasts, and other bugs are growing in your fuel, biocides kill this growth. It is still important to remove the residual grit and other contaminants that are the hallmark of bugs growing in your tank. Usually, turning over the fuel or using a filtration can remove this.

If your tank absolutely has to be clean, you can contract a tank professional to enter the tank and physically clean the tank bottom or reline the tank with either fiberglass or an epoxy resin. We use Valvtect Bioguard Plus 6 for generators, emergency water pumps, backup boiler fuel, and other long term storage purposes. This product kills any existing biological growth and stabilizes your fresh diesel fuel for long term storage. Make sure your diesel is ready the next time you need backup power.

Water in diesel destroys fuel quality rapidly. Check your tank for water every fall and spring.

Pumping the tank bottom removes water if it ever finds its way into your storage tank. Additionally, you want to put in an absorbent material designed to absorb water and not fuel. If your long term storage tank has water and you are not planning to burn 100% of the fuel in the near future, DO NOT add anything that removes water by distributing into the fuel. Adding a “fuel drier” that actually pushes the water into solution with the diesel will worsen the long term quality of your fuel, not improve it. That water is where bugs find their home to grow in fuel.

Star Oilco will test your fuel at no charge if you have an open account.

Feel free to call us with any questions you may have about long term storage of diesel. Star Oil can also deliver treated diesel ready for long term storage complete with Hydrotex PowerKleen Premium Diesel additive to improve the long term storage quality of your fuel. For biocide, we use Valvtect BioGuard fuel microbiocide to kill any possible biological activity and prevent any chance of it starting.

Diesel Testing and Storage in Portland

If you have a long term diesel storage tank and you are in the Portland, Oregon area, we are here to test your fuel.  Make sure your diesel is there for you when disaster strikes.

Tank Testing Form

  • This field is for validation purposes and should be left unchanged.


For more reading on diesel fuel quality assurance:

Fight Humbug in your Diesel Tank (using Valvtect Bioguard Plus 6 to stabalize your stored diesel)

Diesel Fuel Technical Review (an easy to read and free text book on diesel fuel)

Emergency Back Up Generator Fuel Quality (designed to provide a checklist to help Facility Managers keep those back up generators ready for emergency action)

Using Desicant Breathers to keep diesel fuel dry and clean (an introductory primer on desicant breathers and how they can be used to keep long term diesel storage drier and cleaner)

Using Diesel Filters to clean up your diesel fuel quality (an introductory primer on using aggressive filtration in line with diesel fuel dispensing for fuel quality assurance)

Do you need Refrigerated Trailer fuel? We fuel reefers automatically. 150 150 Star Oilco

Do you need Refrigerated Trailer fuel? We fuel reefers automatically.

Refrigerated Trailer Fueling Service.
Dyed Diesel delivered to your trailer.

Seeking to keep something cold with the Pacific Northwest heatwave?  With higher than normal heat many need Refrigerated Trailers as a critical piece of their operation this summer.  Star Oilco drivers are on the road and ready to keep your overflow refrigerated trailers humming and your inventory cold.

Keep your refrigerated trailer running with our automatic keep full program.

Reefer trailer fuel service

Refrigerated trailers, often also called “reefers” in trucking.  These are popular in grocers, food processors, and many other industries. Reefers expand refrigerated inventory for grocers during the food rush of the holidays, and Star Oilco is ready to keep your inventory cold.

Star Oilco is the Portland area’s leading refueler of refrigerated trailers. We’re ready to help you expand your on hand inventory by supplying dyed diesel for your refrigerated trucks. We have the industry’s lowest price for service, a flat fee of $65 for service on an automatic keep full schedule. We’ll keep your inventory the right temperature this holiday season! Our trucks are ready and on the road driving past your location. This program is designed specifically in response to grocers and food processors needing a partner to simplify their refrigeration needs during their busiest time of year.

We make it one less thing to worry about.

How often should you fuel your refrigeration trailer?

Reefer Trailers typically can run for two days without a refuel if opened only once or twice a day.  Three days if you go a weekend without opening the trailer if fueled on Friday.  If you have staff leaving the door open regularly expect to need fuel daily.

Refrigerated trailer fueling. Keep full program.

Call for service. The first step is to open an account or run the service on a credit card, fleet card, or other payment method used by your business. 

Star Oilco can provide either Ultra Low Sulfer B5 Diesel, or low CO2 R99 Renewable Diesel to your reefer. All fuels are dyed and for off-road use to avoid the expensive taxes associated with using clear diesel from a gas station pump. All of our dyed diesel is treated with Hydrotex PowerKleen Premium Diesel. This additive guarantees long-term storage stability and improves performance at time of combustion.

A refrigerated trailer typically burns between 10 and 15 gallons a day in the Portland area during the winter. In our experience, fuel burns faster if the door is continually opened. Some customers are able to get by with service twice a week. Given this experience, we usually recommend a refill schedule of three days a week. This ensures you have no downtime or worry with the refrigerated trailer.

Customers on automatic keep full schedule receive emergency response services for fuel theft at no additional charge. We will be there for you to make running your business that much easier.

Also remember if you are storing a trailer onsite for back up or overflow purposes you will want to prepare the fuel in the tank for long term storage. Star Oilco’s fuel additives ensure the storage and make sure your refrigerated trailer fires when you need it to.

To set up Refrigerated Trailer Refueling Service call or email our office.

We are ready to keep you full.

Construction equipment fuel delivery service

Message us below if you want to get a call back from our Dispatch about setting up service or call 503-283-1256 for immediate service.

Contact Form

  • This field is for validation purposes and should be left unchanged.
Understanding the Benefits of Renewable Diesel 150 150 Star Oilco

Understanding the Benefits of Renewable Diesel

In an era of environmental consciousness and sustainable alternatives, the need for renewable energy sources has become increasingly evident. One of the notable contenders in this field is renewable diesel —a clean-burning, low-emission fuel that could revolutionize the transportation sector. We will dive into renewable diesel, exploring its production process, environmental benefits, and potential to replace petroleum-based diesel. 

What is renewable diesel? Renewable diesel, also known as green diesel or second-generation biodiesel, is a next-generation alternative fuel derived from sustainable feedstocks such as vegetable oils, animal fats, and waste fats and oils. Unlike traditional biodiesel, which is typically produced through transesterification, renewable diesel is synthesized through hydro-treating. This process removes oxygen from the feedstocks, resulting in a cleaner and more energy-dense fuel that is chemically identical to petroleum-based diesel. 

Environmental Benefits: 

  1. Reduced greenhouse gas emissions: One of the primary advantages of renewable diesel is its significant reduction in greenhouse gas emissions. Studies have shown that renewable diesel can reduce carbon dioxide (CO2) emissions by up to 80% compared to petroleum diesel. This reduction is attributed to the use of sustainable feedstocks, which have a lower carbon intensity than fossil fuels.
  2. Improved air quality: Renewable diesel has lower levels of particulate matter, nitrogen oxides (NOx), and sulfur emissions than conventional diesel. Renewable diesel combustion produces fewer harmful pollutants, leading to improved air quality and a decrease in respiratory and cardiovascular health risks for both urban and rural communities.
  3. Sustainable feedstock utilization: Renewable diesel can be produced from a wide range of feedstocks, including used cooking oil, animal fats, and waste oils. By utilizing these feedstocks, the fuel industry can promote the circular economy by reducing waste and repurposing materials that would otherwise end up in landfills. Furthermore, growing dedicated energy crops for renewable diesel production can be done sustainably, without deforestation or compromising food production. 

Advantages Over Traditional Biodiesel:  

  1. Compatibility with existing infrastructure: Unlike traditional biodiesel, renewable diesel can be seamlessly blended with petroleum diesel or used as a drop-in replacement without modifications to existing diesel engines or distribution infrastructure. This characteristic makes it an attractive option for achieving immediate emissions reductions in the transportation sector.
  2. Superior cold-weather performance: Renewable diesel exhibits excellent cold-weather performance compared to conventional biodiesel. It has a lower cloud point and a higher cetane number, which ensures better ignition and combustion even in cooler climates. This attribute makes it a more reliable fuel choice, particularly in regions with frigid winters.
  3. Higher energy density: Renewable diesel has a higher energy density than biodiesel, resulting in increased fuel efficiency and mileage. This benefit translates to longer driving distances per gallon of fuel, making renewable diesel an economically viable choice for vehicle owners and fleet operators. 

Renewable diesel represents a groundbreaking alternative to petroleum-based diesel, offering a host of environmental benefits and paving the way for a greener and more sustainable future. With its significant reduction in greenhouse gas emissions, improved air quality, and compatibility with existing infrastructure, renewable diesel presents a strong case for a need and desire for a widespread adoption in the transportation sector. As renewable energy technologies continue to evolve, embracing renewable diesel can be a crucial step towards reducing our dependence on fossil fuels.