is non-ethanol gas bad for the turbo?

[PaulT]

Is non-ethanol gas actually bad for a turbo? I found a reddit post about "extra detonation" of non-ethanol being bad for the turbo. When I had a naturally aspirated vehicle, I would fill it up with non-ethanol once a month. My mechanical knowledge is very limited. TIA.

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[iResQ]

I've not heard that and have my doubts. Extra (or pre) detonation can adversely affect plugs, rings, pistons, and bearings but would have no impact on the turbo itself. Now the inverse can be true. Turbos make an engine run hotter and generate more pressure than a naturally aspirated engine. That said, turbo engines are designed accordingly.

Also, isn't non-ethanol gas better for engines? It burns cleaner and has greater energy density.

 

[PaulT]

I've not heard that and have my doubts. Extra (or pre) detonation can adversely affect plugs, rings, pistons, and bearings but would have no impact on the turbo itself. Now the inverse can be true. Turbos make an engine run hotter and generate more pressure than a naturally aspirated engine. That said, turbo engines are designed accordingly.

Also, isn't non-ethanol gas better for engines? It burns cleaner and has greater energy density.

That's what I thot...non-ethanol is cleaner, etc, etc. The combustion science is way over my head. Thanks for the insight.

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