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HarlandKornfeld14 ago

What do you mean "ethanol compatible"? All cars can take a small ethanol mixture, like up to E24.

VOALTRON ago

Mostly correct. Newer engines can handle ethanol mixtures better than older (pre 2000's) engines can.

However, engine fuel systems can be built to tolerate much higher ethanol mixtures, or even pure ethanol.

Engines can also be built, and some are built, to run on natural gas too.

Alternative internal combustion engine fuels work just fine, as long as the engine is properly designed, and built to work with them.

Needless to say, the oil cartels would prefer it if the public, and engine manufacturers don't become more supportive of alternative fuels.

HarlandKornfeld14 ago

I get your point. But they didn't have flex-fuel technology in the 1920s, it was only possible in the 1980s.