Quote:
Originally Posted by Daox
The last big optimizations left for ICE engines to allow multifuel use (and general higher efficiency) are variable compression ratio and electronically actuated valves. If we can get those two things built into an engine it would be incredibly flexible and efficient. Until then I agree with Euromodder, you can't design an engine to run on multiple fuels and do them all efficiently.
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I disagree, we already can burn LPG, CNG & gasoline efficiently in the same engine. Diesel & E85 would just be icing on the cake.