Best spark plug type for 98

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Apr 26, 2016 | 12:20 AM

Erik Hoeffner

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From: Parker Colorado

Year: 1991

Model: Cherokee

Engine: 4.0 I-6 H.O.

Best spark plug type for 98

Hey quick question, just bought a 98 and looking to get it new spark plugs. I use standard manufacturer suggested champions in my 91. I forget the model; but would these be fine in the 98 as well?

Last edited by Erik Hoeffner; Apr 26, 2016 at 12:24 AM.

Apr 26, 2016 | 02:42 PM

Erik Hoeffner

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Joined: Feb 2011

Posts: 160

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From: Parker Colorado

Year: 1991

Model: Cherokee

Engine: 4.0 I-6 H.O.

No suggestions ey?

Apr 26, 2016 | 10:19 PM

neverenuff

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From: fountain hills az

Year: 1999

Engine: 4.0l 310,000 miles

no worries with Champion or Autolite in my experience, have used them both in my '99 4.0l. No real difference in electrode wear or engine performance.

Apr 27, 2016 | 11:44 AM

Erik Hoeffner

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Joined: Feb 2011

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From: Parker Colorado

Year: 1991

Model: Cherokee

Engine: 4.0 I-6 H.O.

Are the Copper Plus an issue? My dad doesnt think they're good for the engine or something but I just had these in my 91. Autolites better?

Apr 27, 2016 | 02:14 PM

WyoCherokee

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From: Dont Colorado Wyoming

Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

Champion Coppers. NO need for fancy "platinum" plugs. they dont do anything.

Apr 27, 2016 | 07:30 PM

Erik Hoeffner

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Joined: Feb 2011

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From: Parker Colorado

Year: 1991

Model: Cherokee

Engine: 4.0 I-6 H.O.

Quote:

Originally Posted by WyoCherokee

Champion Coppers. NO need for fancy "platinum" plugs. they dont do anything.

Alright thanks. Put the Copper Plus in and slightly oversized the gaps to a .40. Seems good to me.

Apr 27, 2016 | 09:51 PM

dcollins3208

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I use coppers in everything. Lawnmower, Corvette, Cherokee. Typically NGKs. But to each their own, if one wants to spend a ludicrous amount on "platinum" spark plugs, go for it.