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| quote: | Originally posted by fayraree
lol ok, didn't know about the tuning to higher octane thing...thought that was just race talk 
and i thought ethanol damages seals in the engine? isn't that bad? |
Even stock cars that are tuned for 91 oct can perform better and run safer on 94.
Ethanol usually damages the fuel system on cars that use parts which are not designed to be compatible with ethanol, 10% is fine in most cars though, especially newer ones.
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