Just got back from a road trip to Minneapolis. I noticed that (following I-94) about halfway between Madison and Eau Claire premium became 92 octane instead of 93. Even the Mobil station I stopped at near the currently-being-rebuilt I-35 bridge had 92. I see myself making this trip in the future a couple times a year. Would this cause harm if I get chipped expecting 93 octane? During these trips, should I just keep a can of octane booster in the car?
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