Biodiesel: the science of a renewable fuel

Feb 8, 2013
It is important to realize that unmodified vegetable oil, sometimes called straight vegetable oil (SVO) or waste vegetable oil (WVO), is not biodiesel. Some people have used SVO or WVO in diesel engines with varying degrees of success. The primary problem is the high viscosity and low volatility of the unmodified vegetable oils.

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