What is biodiesel? Biodiesel is an alternative fuel produced
from renewable resources, such as soybeans or used restaurant
grease. Biodiesel contains no petroleum, but it can be blended
with petroleum diesel to create a biodiesel blend. It can be
used in diesel engines with no major modifications. Biodiesel is
simple to use, biodegradable, nontoxic, and essentially free of
sulfur and aromatics. Is biodiesel used as a pure fuel or is it
blended with petroleum diesel? Biodiesel can be used as a pure
fuel or blended with petroleum in any percentage. B20 (a blend
of 20 percent by volume biodiesel with 80 percent by volume
petroleum diesel), B2, and B5 are common fuel blends used today.
Is it approved for use in the U.S.? Biodiesel is registered as a
fuel and fuel additive with the U.S. Environmental Protection
Agency (EPA) and meets clean diesel standards established by the
California Air Resources Board (ARB). Neat (100 percent)
biodiesel has been designated as an alternative fuel by the U.S.
Department of Energ