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#2
08-15-2010, 07:37 PM
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Re: Spark Plug Experience
PKU:
Champion Copper RC12MCC4 (if I remember correctly) worked fine for me. When I changed my oem set at 30k, there was plenty of life left. Don
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Flame Red 2004 Hemi Durango SLT 4x4 w 3.55 gears. 
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#3
08-17-2010, 09:12 AM
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Re: Spark Plug Experience
i would go with copper. its what came in it from the factory, and the motor was designed to run on them! mike
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2006 liberty 3.7 6speed manual 1999 cherokee classic 4.0L 1991 wrangler yj 2.5L 2001 caravan 3.3 auto 1995&1992&1994 camry 2.2L SOLD 1991 silverado 1500 SOLD 2000 rodeo SOLD 
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#4
02-18-2011, 05:39 AM
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Re: Spark Plug Experience
Quote:
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#5
02-19-2011, 08:37 PM
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Re: Spark Plug Experience
Puffin:
Changing the heat range of your plugs will not gain you anything unless you have a modified motor. Folks with superchargers sometimes run a colder plug to help prevent pre detonation from excessive cylinder temps. Your best bet is to go with the OEM Champions which can be had for ~$18 a set. Don
__________________
Flame Red 2004 Hemi Durango SLT 4x4 w 3.55 gears.
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