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masraum masraum is online now
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Join Date: Oct 2001
Location: Central TX west of Houston
Posts: 56,814
93 octane 10% ethanol vs 92 octane 0% ethanol

If you had your choice between 92 octane ethanol free gas or 93 octane w/10% ethanol, and you weren't worried about fuel lines/components, which would you choose and why?

The 92 will make more power, right?

But if your car calls for 93, how much are you in danger of retarded timing?

If the pump says 93 w/10%, is that 93 effective or has the 10% effectively knocked it back a bit more?

Just curious.
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Old 03-26-2021, 05:38 PM
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