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  1. #1
    Senior Member Getting Dirty The_War_Wagon's Avatar
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    Quote Originally Posted by paroxysym View Post
    BUMP, are you guys changing your plugs at 30k?

    just changed mine at 90k, just rolled 120k
    Changed mine @ 60k, because that's when I bought it. ALMOST to 80k now - got a while 'til the next batch.
    '07 Jeep Commander, Rocky Mountain Edition - 287 V-8 - Superchipped - aFe Stage II R-5A CAI - Flowmaster Super 44 - 2" Daystar lift - Spidertrax spacers - 32x10.5x17 Cooper A/T's - Fastman throttlebody - Skyjacker 8000 shocks

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    Senior Member Getting Dirty lekmedm's Avatar
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    If you are running OEM copper plugs, change every 30k miles. If you run iridiums, you can change every 100k miles!
    2007 Commander Overland / 4" SuperLift / 285/70R17 Cooper Discoverer ST Maxx / Rusty's adjustable rear UCAs / Carolina Driveline front drive shaft / Flashpaq / DRLs & Tilting Mirrors / Autolite Iridiums / Cobra 29LX Chrome LE CB & Firestik antenna / Rear fog lights / Mopar Grille Guard with HID driving lights
    "4 wheel drive does not mean 4 wheel stop!" -Lee Goldberg, WABC TV weatherman

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    Senior Member Getting Dirty The_War_Wagon's Avatar
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    Quote Originally Posted by lekmedm View Post
    If you are running OEM copper plugs, change every 30k miles. If you run iridiums, you can change every 100k miles!
    Well that's what I THOUGHT, but I wasn't sure. I switched to NGK iridiums when I changed mine at 60k.
    '07 Jeep Commander, Rocky Mountain Edition - 287 V-8 - Superchipped - aFe Stage II R-5A CAI - Flowmaster Super 44 - 2" Daystar lift - Spidertrax spacers - 32x10.5x17 Cooper A/T's - Fastman throttlebody - Skyjacker 8000 shocks

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    Senior Member Getting Dirty sean112280's Avatar
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    I have the 4.7 with the copper plugs. can somebody help me verify what the gap should be? I am double checking. thanks

  5. #5
    Lifetime Member Getting Dirty Matt's Avatar
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    Easiest way to double check is look at the placard on the underside of the hood. It'll list the gap and spark plug part number under the engine specs.

  6. #6
    Senior Member Getting Dirty sean112280's Avatar
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    appreciate it Matt. How are you doing?

  7. #7
    Lifetime Member Getting Dirty Matt's Avatar
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    Doing pretty good man. Keeping busy as usual

    Fyi I like the new xj!

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