Champion Platinum Spark Plugs
#1
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Year: 2000
Model: Cherokee
Engine: 4.0L
Champion Platinum Spark Plugs
I just replaced the spark Plugs in my 2000 XJ. I used Champion RC12PEC5 (Platinum) plugs.
Read a few threads that are making me second guess my decision, though.
The Jeep has been running pretty good for the 2 weeks since I've replaced them, though.
Anyone have bad experience with theses plugs?
Read a few threads that are making me second guess my decision, though.
The Jeep has been running pretty good for the 2 weeks since I've replaced them, though.
Anyone have bad experience with theses plugs?
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Year: 2000
Model: Cherokee
Engine: 4.0 I6
Yeah I've heard the best plugs to run are the champion copper. Its what I put in last year after reading a lengthy thread about this very topic. I'm changing them again this weekend and will go with the champion coppers again.
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Year: 1996
Model: Cherokee
Engine: 4.0 HO Straight Six
00-01s like the NGK coppers the best. I wouldnt keep your current ones in there for long or you might start getting misfires. Years 99 and earlier like champion coppers best
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Year: 2000
Model: Cherokee
Engine: 4.0 I6
Originally Posted by 1996sportXJ
00-01s like the NGK coppers the best. I wouldnt keep your current ones in there for long or you might start getting misfires. Years 99 and earlier like champion coppers best
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Year: 1996
Model: Cherokee
Engine: 4.0 HO Straight Six
Well if you already put champion coppers in it I wouldn't worry about it and run em for their life span. And just make the switch when it's time
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Year: 2000
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I've put about 50k miles on the champions. They might still have a little life in them but I want to change them anyway.
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Year: 1998
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Engine: 4.0L HO
I'm puzzled as to how a motor tells what kind of spark plug is in it. As long as the replacement plug is correctly cross referenced, the rest of the ignition system is in good shape and the new plug is properly gaped at .035, the motor should run fine. Everything I've read says the main platinum plug advantage is slightly less electrical resistance so it's a little easier for the ignition to jump a spark across the gap and platinum holds the set gap longer. Iridium plugs hold the set gap even longer than platinum. Generally, the plug gap increases over time/miles....the wider the gap, the harder it becomes for the ignition system to jump a spark across the wider gap and a misfire occurs.
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Year: 1999
Model: Cherokee
Engine: 4.0l
The daily driver 1999 gets stock copper plugs, the 1999 toy get NGK Iridium. i have no complaints from ether, both work great.
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Year: 1997
Model: Cherokee
Engine: 4.0
Originally Posted by djb383
What does it say about what it doesn't like?