Changed plugs….quite a difference.
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06-11-2009, 06:55 AM
Join Date: Sep 2007
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Changed plugs….quite a difference.
Took out the platinum’s and put in AGSF32C (copper) last night and feels like I gained 10 HP! Doesn’t have that “run out of poop” feeling at higher speeds like it had before. Didn’t have any misfire that was bad enough to flip on the “service soon” light but obviously there must have been at a minimum some incomplete combustion happening. May explain what the tail pipe looks so black (blacker than it always was). Betting on a MPG or 2 better as well. Platinum plugs came out opened up to around .064. Gaped the copper plugs at .045. Truck only had about 45000 miles. Will change the plugs every year from now on.