Quote:
Originally Posted by iLaw
I'm always skeptical on doing that... The manual says minimum 93 octane. Plus I've seen data logs that show the engine knocks a little on 91.
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I have about 5 logs on Shell 91, Costco 91, and Esso 91 (not 93) showing IAM varying from 0.82 to 0.96, it never hit 1.0
Ultra 94 is pegged at 1.0 all day