zex spark plugs affect gas mileage?
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From: bloomington, MD/IN
zex spark plugs affect gas mileage?
whoever has these spark plugs.... did u guys notice any change in your gas mileage after swapping out your coppers....
like times your run through a tank of gas without spraying, any difference in mileage noticed?
like times your run through a tank of gas without spraying, any difference in mileage noticed?
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92egcivicls
Honda Civic / Del Sol (1992 - 2000)
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Oct 28, 2008 01:07 AM
