Thread: timing belt & spark plugs ~ which ones?
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Old 06-11-2014, 12:12 PM   #17 (permalink)
mikeyjd
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Quote:
Originally Posted by Daox View Post
Changing plug types will not increase or decrease your mileage a noticeable amount.
Has this been tested thoroughly? There seems to be conflicting opinions, and I'm just wondering if you know of any good data on this.
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