Is B20 approved for use in military vehicles?
Yes. In 1999, a memorandum from the Office of the Under Secretary of Defense deemed B20 suitable for use in administrative (commercial) vehicles where long-term storage is not an issue. However, biodiesel is not currently approved for use in tactical vehicles due to potential long-term storage issues. Currently, Fort Benning near Columbus, Georgia uses a B20 blend in its bus fleet. Can I use B20 in my existing diesel engine? B20 works in any diesel engine with few or no modifications to the engine or the fuel system. B20 provides similar horsepower, torque and mileage to diesel. Biodiesel has a solvent effect that may release deposits accumulated on tank walls and pipes from previous diesel fuel storage. This affect is much more dramatic with B100 than with biodiesel blends such as B20. The release of deposits may clog filters upon the initial use of B20 and should be closely monitored when switching to B20. Always ensure that only fuel meeting the biodiesel specification D-6751 is use