Quote:
Originally Posted by OldGuyBRZ
Yes, I understand that (see my earlier post). Maybe it's a 'placebo effect', but it seems to me that the engine tends to hesitate slightly with 91 octane when I jump on it, and not so much with the higher mix. Maybe I'm getting crappy gas from Arco(BP), Valero, etc and the 76 100 Octane is better gas. It was your earlier post that actually got me thinking about using the E85. I'm a cheap skate, so I never use a higher octane like some folks that think it's better gas. I put regular in my wife's MDX that calls for premium, haven't heard a knock yet.
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Check my post earlier in the thread, I agree, car ecu is programmed to run 93, but "learns" and compensates to run CA 91 gas by sacrificing some response (not necessarily power).
I believe you will need a tune (Ecutek, etc) to run E85 properly without messing up your engine. Had a few guys out here who have tried E85, but I guess it could be tricky finding a gas station (not as common here in the bay compared to the valley)