Spark Plugs!?!?!?! - Jeep Commander Forums: Jeep Commander Forum
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post #1 of 18 (permalink) Old 09-02-2012, 02:06 PM Thread Starter
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Spark Plugs!?!?!?!

Just purchased the Champion 570 RE14MCC4 Copper Plus and was wondering if anyone else besides BackcounrtyBob has had any issues with them?
06' hemi
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post #2 of 18 (permalink) Old 09-02-2012, 05:20 PM
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Are those the oem plugs that came with it or an upgraded plug?




2007 4.7 Liter XK | Front OME MD Springs w/Superlift Preload Spacer | Rear 4" Superlift Springs | Bilstein 5125 Rear Shocks | JBA UCA's | Rusty's Rear Adjustable Track Bar | Black Rock 997 Wheels | Fred Goeske 1/4 Inch Wheel Spacers | 305/70R17 Goodyear Wrangler MT/R w/Kevlar | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front E-Locker | Rear Heat/AC Delete
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post #3 of 18 (permalink) Old 09-02-2012, 06:03 PM Thread Starter
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According to Napa Auto store these are oem. I saw the posts by another member and he said it caused coli damage. Just wondering if anyone has used these. checked my boots and coils and everything seemed fine. didnt put the plugs in yet, waiting to see if i get a response on here
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post #4 of 18 (permalink) Old 09-02-2012, 06:32 PM
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OEM or OEM replacement? If those are the same that are in it now it wont cause any damage..




2007 4.7 Liter XK | Front OME MD Springs w/Superlift Preload Spacer | Rear 4" Superlift Springs | Bilstein 5125 Rear Shocks | JBA UCA's | Rusty's Rear Adjustable Track Bar | Black Rock 997 Wheels | Fred Goeske 1/4 Inch Wheel Spacers | 305/70R17 Goodyear Wrangler MT/R w/Kevlar | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front E-Locker | Rear Heat/AC Delete
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post #5 of 18 (permalink) Old 09-03-2012, 07:53 AM
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post #6 of 18 (permalink) Old 02-09-2013, 06:33 AM
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I just put these in last night. They are gapped to the required .044, the comparable auto lites are not. Engines idles and does everything better than the previous NGK iridiums the previous owner had installed.
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post #7 of 18 (permalink) Old 02-09-2013, 07:58 AM
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Quote:
Originally Posted by Centcomm87 View Post
I just put these in last night. They are gapped to the required .044, the comparable auto lites are not. Engines idles and does everything better than the previous NGK iridiums the previous owner had installed.
I'm coming up on spark plug replacement time. How much did these plugs run you? I'm running Champion OEM and she runs fine, although mileage is deteriorating. Hoping to pick up 1 or 2 mpg; unlikely, but there's plenty of room for improvement right now.

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post #8 of 18 (permalink) Old 02-09-2013, 08:17 AM
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I just changed my spark plugs two days ago with the oem champions on my 4.7 liter. The are really cheap. Think I paid $1.49 each from local auto parts store. I've tried running several other plugs with bad results.




2007 4.7 Liter XK | Front OME MD Springs w/Superlift Preload Spacer | Rear 4" Superlift Springs | Bilstein 5125 Rear Shocks | JBA UCA's | Rusty's Rear Adjustable Track Bar | Black Rock 997 Wheels | Fred Goeske 1/4 Inch Wheel Spacers | 305/70R17 Goodyear Wrangler MT/R w/Kevlar | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front E-Locker | Rear Heat/AC Delete
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post #9 of 18 (permalink) Old 02-09-2013, 01:54 PM
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Quote:
Originally Posted by Centcomm87 View Post
I just put these in last night. They are gapped to the required .044, the comparable auto lites are not. Engines idles and does everything better than the previous NGK iridiums the previous owner had installed.
Which plugs exactly, the Champion OEM or some other?

2006 Limited, Light Khaki Metallic, Light Graystone/Dark Khaki Leather, HEMI, QDII, Rear DVD, REC Nav w/09 Database, woody side, EGR hood deflector, AEM Gun Metal Brute Force CAI, tilting rearview mirrors.
“I did not enter politics out of philanthropy but rather as an extension of my own annoyance at having inherited freedoms infringed by power-crazed idiots spouting gibberish”. Nigel Farage MEP; Leader, UK Independence Party
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post #10 of 18 (permalink) Old 02-09-2013, 02:04 PM
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Sorry, OEM champions, $2.65/each loving the, seeing 1-2 mpg improvement over NGK iridium of unknown age. They were however in poor shape.
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