New Spark Plugs

[Jeeper]

So, I'm reaching the 30,000 mile mark, anyone have any suggestions about a certain brand spark plug to go with. graemlins/beerchug.gif

[Willy]

It is best to go with the same type and brand that are already in there. I have heard that some other brands cause problems.

[Gojeep]

Above is true and have heard it time and time again that the Jeep sixes run the best on Champion plugs. Dont get them from the dealer but from Repco or the like. Just make sure they are the exact same ones as we need the longer isolator tip with the EFI.
Just looked it up and you need Champion RC12LYC
Gap them to .9mm