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plugs

POLmagnum

NAXJA Forum User
Location
Utah
I have a 92 xj Laredo 4.0, looking to change plugs it had split fires I,m wondering what is the best plug for the 4.0, also I,m hearing alot of bad stuff about this AT+4, I just changed the tranny filter and fluidy the parts store said i have to run that at+4. So is it good, bad and what sort of problems does it cause?
 
not to be a "search" nazi, but there are about eleventy billion threads on here about spark plugs and tranny fluid. I'd highly recommend you get that ATF+4 out of your tranny (remind them that the AW4 is NOT a chrysler transmission, at your parts store). DexIIe/III works best, and many also love Amsoil ATF (I run their TorqFlo) and I've heard Sweptco is awesome ATF too.
 
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