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Old 11-25-2012, 12:01 PM   #16 (permalink)
Zat_Zuma
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Quote:
Originally Posted by LMBmikeZ View Post
Not the case over here in Ontario, we get 91 octane ethanol free from Shell.

That's all I have ever used in my 370z, my Z32 was tuned for 94 octane so that's all I used in it.

I also remember reading articles talking about ethanol fuel lowering gas mileage, very little amount but still less.

My little research showed that 5% ethanol gave 5% less gas mileage and 10% was 10% less mileage.

Worked out to 2.5 mpg on the Challenger on 91 octane fuel with 10% ethanol. Same price as Shell 91 and 10% better gas mileage........ no brainer for me which fuel to buy.
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