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Saint Paul, MN
I have a 2007 Chevy Cobalt with bare bone basics. The car rides fine, coolant level is were it should be, air filter is good, and gas cap is on properly. Could gasoline with a different blend and a higher octane amount cause this?
I've checked the gas cap, air filter, and coolant levels. All of these are fine, so could it be from gasoline with a high level or grade of octane?