Thread: How could I lose 10 mpg in a week of BETTER driving?!
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Old 03-26-2013, 12:56 PM   #16 (permalink)
RobertISaar
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Join Date: Jul 2012
Location: camden, MI
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MC SBX - '95 Chevrolet Monte Carlo LS
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if Fiat themselves recommend premium fuel, use it.

anything with a functioning knock sensor can run on 87 octane fuel, but if the calibration and engine is setup for premium, you WILL see a drop in efficiency.
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