joe1992

Hey guys these are auto lite plugs in my jeep and was wondering how great these were?? And they have some burnt grease crap on them? Should I be replacing these??? I have a 2000 and heard that NGks were good!?? Thanks!!!

XJ Stryker

nah run them till she blows...

Come on man. You pulled them. They look like crud. Then take a pic to ask if you think you should change them. YES

You don't have to be a mechanic to see that those are pretty well worn out. Rust alone is bad you don't want wanna them suckers snapping in half the next time you remove them.

Fsher21

Might as well since they are out and they are cheap to replace. What is the condition of your wires? I can't tell if you had crud up inside them or if they got dirty taking them out.

ZINGGG

^what he said

Toss them and never look back.

And then replace them with NGK Coppers gapped to .035"

purplegrocerygogetter

Wow

joe1992

Well I want to replace them but super duper short on cash but the crud that's on them was some kinda of grease crap the previous owner put on there.

If I replace them should I get some better Mpgs??

XJ Stryker

Depends on what you was getting before and other. You will probably get a small bump but you won't really notice.

But if half were fouled and you were getting like 9MPG then yeah you will see a huge increase.

ZINGGG

Yeah you may see a small kick in mpgs but nothing TOO significant, I wouldn't think. It'll probably be a noticeable enough change that the new spark plugs will pay themselves off in no time.

ZINGGG

Besides, you'll be spending roughly $15 on new spark plugs. That really isn't that much and you REALLY don't want to put those crappy, rusty, gunked up ones back in there. That can't be good for your engine.

rrich

Autolites NEVER work properly in a Jeep.
Use what your underhood label says to use - the guys that wrote the label know what works.

joe1992

Given I have like 6.5 lift and 33s I think I'm getting under 10 right now....

djb383

The business end of those plugs looks fairly decent.......but now that the secret's out and they know they've been a Jeep, I wouldn't put them back in.

joe1992

I'm picking up ngk coppers at 7pm!! ;-)

joe1992

Do u guys reccomend anti seize on these??

nickxj94

Always anti seize the threads on any plugs your installing it wont hurt anything and be easy for when you have to pull them out next time. I use antiseize on every bolt, nut on both my xjs due to rust and replacing crap all The time.