Biodiesel (B100) contains about 8% less energy per gallon than petroleum diesel. For B20, this could mean a 1% to 2% difference. However, some users report no difference or even improved fuel economy with blended biodiesel. This may be a result of a biodiesel solvency effect that reduces engine deposits and creates a higher cetane rating, meaning it burns fuel more efficiently. Biodiesel also has greater lubricity, which reduces engine wear and some users have experienced successful extension of oil change intervals. Biodiesel can be operated in any diesel engine with little or no modification to the engine or the fuel system. The cost of B20 varies, but has historically been five cents less to thirty cents more than petroleum diesel (other blend levels are relative to this cost comparison). Interested users are strongly encouraged to consult with biodiesel distributors and retailers for specific pricing.

Biodiesel has many health and environmental benefits when compared to regular diesel fuel. It produces significantly fewer emissions (unburned hydrocarbons, toxics, CO2, CO, particulates, and others). The reductions in emissions increase as the amount of biodiesel blended into diesel fuel increases. Biodiesel is also a renewable, American fuel and can be made from domestic resources.

This information was borrowed from the Clean Fuels Ohio website. For more information and helpful links on biodiesel, please visit Clean Fuels Ohio.