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wreckchick 02-13-2008 08:35 AM

Spark Plugs?
Since there's already the air filter thread running and plugs were brought up...

Years ago I had an old p/u that I put bosch platinums in and noticed a huge difference in performance. Now I hear they're not so good...

The Jeep is getting new plugs, what do you recommend?


distortedtj 02-13-2008 08:39 AM

what year is your jeep and what motor do you have?

wreckchick 02-13-2008 08:42 AM

Oops, sorry...

'91 2.4L


1BLKJP 02-13-2008 03:59 PM

I'd say good ol Champions will work just fine for you.

Jonny15 02-13-2008 05:02 PM


Originally Posted by wreckchick (Post 193304)
Oops, sorry...

'91 2.4L


Not a big deal but just for reference if its a 91 its the 2.5L amc 4 banger. The newer 2.4's didn't come out til 03 or 04...

As for spark plugs, like 1blkjp said, good old champions will work just as well as the expensive plantinums in our jeeps.

Hubdeep 02-13-2008 05:07 PM

Champion Truck Plugs.

Best plug we've ever used in our 6 jeeps.

1BLKJP 02-13-2008 05:26 PM


Originally Posted by Hubdeep (Post 193438)
Champion Truck Plugs.

Best plug we've ever used in our 6 jeeps.

I believe they are the Champion Truck 4012's correct?

Scoob 02-13-2008 06:08 PM

I prefer the NGK's.

distortedtj 02-13-2008 06:47 PM

Champion 4412 Truck plug for the 4.0 not sure about the 2.5 let me look alittle more for you:wavey:

nregas1 02-13-2008 08:02 PM

Champions! Later model came stock with NGK's. The info sticker on the underside of hood will state which plug. I tried the Bosch plats and the Champion plats and both made my junk run like crap. Switched back to the recommended NGK's and all was right again. The others seem to make it run too rich.

Scoob 02-13-2008 08:09 PM

Jeeps that have the coil rail should stay away from the fancy sparks with lots of probes. It will only cause them problems.

richp 02-13-2008 10:41 PM

I just picked up 24 Champion coppers for my fleet this morning, $1.77 ea from advanced Auto parts, $.30 cents per plug cheaper than the dealer. Originally just picked up 6 then went back for the rest when I noticed the price, was not paying attention at the register to specifics. :D

Walkeraviator 02-14-2008 06:15 AM

I vote for Champion as well. I have found the only cars that run good on Platinum or Iridium plugs are boosted vehicles. I used plats in my boosted civic and the cooler spark definitely helped a lot.

wreckchick 02-15-2008 02:13 PM

Alrighty then!

Thanks y'all!


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