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Re: A little less pep ? Posted by TML [Email] (#2212) [Profile/Gallery] (more from TML) on Thu, 17 Aug 2006 11:58:45 In Reply to: A little less pep ?, dudewithasaab, Tue, 15 Aug 2006 18:18:20 Members do not see ads below this line. - Help Keep This Site Online - Signup |
You most likely won't get better mileage with higher octane fuel. I see lots of people claim this. I know with the three Saabs I've had, the fuel economy is not significantly different on different octanes, and in fact if anything it gets worse with higher octane. I've done dozens of highway comparisons. It makes sense because, correct me if I'm wrong, higher octane fuel has less energy per volume than lower octane.
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