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Originally Posted by natehale1971
I was wondering about the Biogas... it it the same as the Biodesiel? I had read somewhere about an additive that could be used that would cause petrol-based fuels to go further.. has anyone else heard about this?
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Gas is an American colloquialism for petrol isn't it? I think what we are referring to when we talk about Biogas is methane/propane type fuels that are actually gaseous at sea level pressures, not liquid petrol. Biodiesel is usually vegetable oil or animal fat (plus additives).