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Old 08-22-2009, 07:26 PM   #1
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Sparkplugs

I am gonna change my sparkplugs soon and was wondering if there was a certain brand or type that run best in a wrangler and what spacing do ya all use with them?
Thanks

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Old 08-22-2009, 08:16 PM   #2
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Good ol Champion Truck plugs. I think .035. Anything else is a waste of money.

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Old 08-22-2009, 08:20 PM   #3
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I use NKG's or is it NGK's lol can't recall they have been good so far.
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Old 08-22-2009, 08:56 PM   #4
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Good ol Champion Truck plugs. I think .035. Anything else is a waste of money.
bullseye and you are correct on the gap too.
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Old 08-22-2009, 08:58 PM   #5
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Champ!
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Old 08-22-2009, 09:32 PM   #6
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Thanks guys
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Old 08-22-2009, 09:42 PM   #7
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Champion 7712 Truck Plugs are fine and .035 is the correct gap too, but you can also install Champion 7034 or Autolite APP985 (not AP985) plugs that will perform just as well as the 7712 Truck Plug but outlast it by 3X. Personally I'd rather have a plug that will perform equally well for 100K miles as the Autolite APP985 and Champion 7034 will.
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Old 08-22-2009, 10:16 PM   #8
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bosch platinum plus #4003 .035 gap
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Old 08-24-2009, 10:04 AM   #9
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+1 on Champion 7034

Just installed them in my '05 Rubi, and it runs much better.
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Old 08-24-2009, 10:54 AM   #10
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bosch platinum plus #4003 .035 gap
For some reason that I believe is heat-range related, neither the Bosch Plus2 nor the Plus4 plugs run well for very long in the 4.0L or 2.5L engines. Few people have good luck with them for long.
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Old 08-24-2009, 02:42 PM   #11
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i agree with Jerry, again. i tried the bosch +2 on my last tune-up, only to find that they needed changed after about 5000 miles. they were burnt to a crisp. switched back to Champion and still going. Whatever you do, don't try splitfires. keep it simple
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Old 08-24-2009, 02:50 PM   #12
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good to know i put in some bosch plugs about 2,000 miles ago. They seem to do alright but we'll se if they can hold up.

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