Quote:
Originally Posted by cRiPpLe_rOoStEr
Not just Diesels have a higher efficiency, they're also still the most reliable platform for experiences with some renewable fuels such as biodiesel, pure vegetable oils, and even ethanol in some cases.
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None of these alternatives can be used in modern (post 2007) Euro diesels with DPFs. I also understand that Bio-D can ruin injectors not designed for it, at $1000 each from VW, you'd have to be really keen to try that.