I'm pretty sure that every (brand new) car sold in Canada in the last 20+ years are able to handle E10 blended gasoline without any issues because they were designed and built for that. So the problem with ethanol-blended fuel in modern cars really only comes down to ethanol's tendency to attract water over time, and regular (87 octane) gas is more prone to that than 91+ octane gas.
Also, as cdizzle has mentioned, ethanol is a fantastic (ICE) performance enhancer if your car's ECU knows how to take advantage of it. It has an inherent cooling capability, in addition to having the ability to resist knock.
Quote:
Originally Posted by cdizzle_996
5-10% won't harm lines.
Eth is fantastic from a performance standpoint.
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