Preparing for Your Fleet’s Switch to Biodiesel

More fleets are switching to alternative fuels and biodiesel is a popular choice. Below, we’ll outline the steps involved in a smooth transition to biodiesel.

biodiesel-tanks


Understand Federal and State Regulations

Biofuel regulations on a local, state and federal level are becoming increasingly stringent as standards tighten on vehicle emissions. Make sure you are aware of regulations that pertain to your fleet.

On the federal level, covered fleets must adhere to the Energy Policy Act (EPACT), which requires acquisition of alternative fuel vehicles (AFV) or electric vehicles, investment in alternative fuel (AF) infrastructure or equipment, purchase of biodiesel or purchase of AFV credits.

Regulations vary on the state and local level, so you will want to browse the Alternative Fuels Data Center for what is required by the states your fleet operates in. Most states have already adopted biodiesel blends ranging from 11 percent to 20 percent (B11 to B20) and have plans to adopt blends greater than B20.

For more information and resources on federal and state regulations for biodiesel, check out our previous blog post.

Choose a Biodiesel Distributor

Fleets experience the greatest issues with biodiesel when there is poor fuel quality. One way to reduce your risk of poor biodiesel is to choose a trustworthy distributor.

The quickest way to identify this is to choose a distributor with the BQ-9000 certification, meaning the distributor provides biodiesel that has been certified to be produced and maintained at the industry standard of ASTM D6751.

If BQ-9000 isn’t available, determine the following to narrow down a distributor, whether the:

  • Distributor verifies fuel quality from its supplier
  • Supplier uses a consistent feedstock
  • Distributor has dedicated storage tanks and trucks
  • Distributor periodically tests its tanks for fuel degradation
  • Additives are used to compensate for different seasons

Prep Your Vehicles and Equipment

Biodiesel is compatible with most existing vehicles, equipment and infrastructure but there are initial steps you need to take to prep them.

1. Screen your fleet for vehicles older than 1995

Vehicles manufactured before 1995 may not be compatible with biodiesel, so make sure you don’t use these vehicles with biodiesel or replace them with newer vehicles.

2. Evaluate storage tanks and dispensers for compatibility

You do not want to find out that your storage tanks and dispensers are not compatible with advanced biofuels after the fact. Check this infrastructure first to be safe and avoid a potential headache.

3. Prep storage tanks and vehicles for biodiesel use

Make sure you clean out storage tanks and install desiccant vent traps to avoid contamination. If necessary, retrofit older vehicles with new hoses and gaskets that are compatible with biodiesel.

Consider Fueling Logistics

Before switching fuels, there are different fuel logistics involved to consider such as:

  • Time it takes to refuel each vehicle
  • Desire or ability to negotiate access to private fueling infrastructure owned by another fleet
  • Whether you want to have your own fueling infrastructure or mobile fueling tank, or use existing infrastructure
    • If using your own fueling infrastructure, consider the related costs and regulations
    • If using existing refueling infrastructure, consider the location of the fueling stations, its distance from fleet routes and reliability

Update Operations

Biodiesel has different properties and makeup than diesel, which requires minor operational tweaks for your fleet.

Biodiesel can clog filters more often than diesel, so it performs best when filters are changed often.

Also, this advanced biofuel can gel like diesel but at warmer temperatures. In order to prevent gelling during the winter, store the vehicle indoors if possible, blend your biodiesel with no. 1 diesel to lower the temperature at which it gels and use additives.


Transitioning your fleet from diesel to advanced biofuels involves several considerations and aspects to prepare for, but it should not be overwhelming. Taking these steps before the transition will lead to a smoother process and help you avoid additional costs.

No matter what types of fuel you use, keep track of it all in our fleet maintenance software. Start a free 14-day trial today.


Jessie Robinson

Content Marketing Specialist

Jessie Robinson is a Content Marketing Specialist at Fleetio, and is passionate about the future of green transportation technology and french fries.

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