Nononononono please don't do that! You'll trash your engine. Some people with old Mercedes diesels have used 85% veggie oil and 15% gasoline premixed, but this is not recommended. The TDI injection pump and seals are already sensitive to excess methanol and water from homemade biodiesel. Ethanol is a big no no.
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'scort no longer- '86 VW Jetta diesel - biodiesel
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