Spark plugs??? - JeepForum.com

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post #1 of 17 Old 07-25-2006, 03:45 PM Thread Starter
Diehard
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Spark plugs???

Can somebody tell me the difference between the recommended Champion plugs #RC12MCC4 and the truck Champion plugs that the Advance Auto Parts store sold me besides that the price for the stock plugs are $1.49 ea. and the truck plugs are $2.98??? I had the guy look it up 2 times and they said the truck plugs ($2.98) were the correct ones, but the manual and the WJ Jeep site says RC12MCC4. And yes I know they probably just wanted to sell the ones that cost more. But is there really any big difference? Thanks.


2004 GC Spec. Edit. V8 4x4 Quadra-Trac II. Bright Silver Metallic Clear Coat, 4" lift, RE shocks, adj. JKS CAs all around, 265/75/16, ProtoFab winch bumper, Vortex 10,000 lb. winch, dual OME steering stabilizer, Rockyroad rockrails, skids, JKS Discos. Addco front & rear sway bar, & Aussie locker.
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post #2 of 17 Old 07-25-2006, 04:00 PM
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Sounds like the difference is a buck and a half.

Pretty sure that most people like running either Truck Plugs or NGKs

Jim Karlin
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post #3 of 17 Old 07-25-2006, 04:33 PM
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I run the truck plugs. They are probably a more durable plug is my guess

'04 WJ, 6" Clayton LA's, 242 SYE, 35" BFG MT KM2's, 4.56 gears, & D44a locked
'14 WK2 Limited w/5.7L, ORAI, & Tow Package
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post #4 of 17 Old 07-25-2006, 04:42 PM
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Quote:
Originally Posted by ArloGuthroJeep
I run the truck plugs. They are probably a more durable plug is my guess

uummmm, no. The only real difference (well besides price) is the color of the porcelain. Oh and the ad campaign behind each plug.

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post #5 of 17 Old 07-25-2006, 04:44 PM
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So the color changes the color of the spark like stickers add HP then? - I was originally thinking it was a heavy duty application like light bulbs that go in ceiling fans for instance...

'04 WJ, 6" Clayton LA's, 242 SYE, 35" BFG MT KM2's, 4.56 gears, & D44a locked
'14 WK2 Limited w/5.7L, ORAI, & Tow Package
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post #6 of 17 Old 07-25-2006, 04:50 PM
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Yeah something like the sticker theory.
For the second part the only reason a light bulb can be made heavy duty is it has a filament that can be supported or made of a different material. And since a spark plug doesn't have a filament...........

What would make a difference would be the metal used to the electrode. As silver and gold conduct better than others they would be good to use. But the price and low melting point make it not such a good idea.

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post #7 of 17 Old 07-25-2006, 04:53 PM
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Quote:
Originally Posted by Varkyl
uummmm, no. The only real difference (well besides price) is the color of the porcelain. Oh and the ad campaign behind each plug.
Exactly. I get tired of hearing guys talk about getting, needing or wanting Champion "truck" plugs because they need them for a Jeep, truck, or whatever because they are a better running plug. B.S. same plug, different box and part number.
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post #8 of 17 Old 07-25-2006, 04:59 PM
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Thanks for clearing that up guys

Jim Karlin
"How the heck do you get there?"
"Duh! Big RED Jeep!!!"
Best customer service in the states:

96 ZJ Laredo
5" lift, Claytons, KOR radiator support, rear bumper, steering brace, etc, etc, etc.

04 WJ Overland
Clean.... :D
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post #9 of 17 Old 07-25-2006, 06:09 PM Thread Starter
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Ohhhh.....ok

Ok, that's clear now........as mud!!! But thanks for all the replies. I'll try the truck plugs. This is the first time I'm changing them. 30,000 miles. See if they add any HP.......

2004 GC Spec. Edit. V8 4x4 Quadra-Trac II. Bright Silver Metallic Clear Coat, 4" lift, RE shocks, adj. JKS CAs all around, 265/75/16, ProtoFab winch bumper, Vortex 10,000 lb. winch, dual OME steering stabilizer, Rockyroad rockrails, skids, JKS Discos. Addco front & rear sway bar, & Aussie locker.
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post #10 of 17 Old 07-25-2006, 06:14 PM
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Only stickers and the Tornado do that

Jim Karlin
"How the heck do you get there?"
"Duh! Big RED Jeep!!!"
Best customer service in the states:

96 ZJ Laredo
5" lift, Claytons, KOR radiator support, rear bumper, steering brace, etc, etc, etc.

04 WJ Overland
Clean.... :D
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post #11 of 17 Old 07-25-2006, 06:23 PM Thread Starter
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I already have some stickers. But I still get 19 mpg on the highway.

2004 GC Spec. Edit. V8 4x4 Quadra-Trac II. Bright Silver Metallic Clear Coat, 4" lift, RE shocks, adj. JKS CAs all around, 265/75/16, ProtoFab winch bumper, Vortex 10,000 lb. winch, dual OME steering stabilizer, Rockyroad rockrails, skids, JKS Discos. Addco front & rear sway bar, & Aussie locker.
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post #12 of 17 Old 07-25-2006, 06:42 PM
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I just realized that you are putting the plugs in a GC. You want Station Wagon plugs, not Truck plugs.
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post #13 of 17 Old 07-25-2006, 07:49 PM Thread Starter
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Your sooooo funny, but don't quit your day job!! This GC is more than able to go offroad.

2004 GC Spec. Edit. V8 4x4 Quadra-Trac II. Bright Silver Metallic Clear Coat, 4" lift, RE shocks, adj. JKS CAs all around, 265/75/16, ProtoFab winch bumper, Vortex 10,000 lb. winch, dual OME steering stabilizer, Rockyroad rockrails, skids, JKS Discos. Addco front & rear sway bar, & Aussie locker.
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post #14 of 17 Old 07-25-2006, 08:01 PM
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Guess I had to lift my GC up onto that rock, huh?


My station wagon! OMFG!!




Jim Karlin
"How the heck do you get there?"
"Duh! Big RED Jeep!!!"
Best customer service in the states:

96 ZJ Laredo
5" lift, Claytons, KOR radiator support, rear bumper, steering brace, etc, etc, etc.

04 WJ Overland
Clean.... :D
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post #15 of 17 Old 07-25-2006, 08:14 PM Thread Starter
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Oh. Ok. So you know what I mean. Never called mine a station wagon. My gas tank skid is sitting in my garage waiting to be installed too!!! Too bad we're not in the same state.

2004 GC Spec. Edit. V8 4x4 Quadra-Trac II. Bright Silver Metallic Clear Coat, 4" lift, RE shocks, adj. JKS CAs all around, 265/75/16, ProtoFab winch bumper, Vortex 10,000 lb. winch, dual OME steering stabilizer, Rockyroad rockrails, skids, JKS Discos. Addco front & rear sway bar, & Aussie locker.
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