Spark plugs
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JK Newbie
Joined: Jun 2012
Posts: 20
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From: Texas
Spark plugs
So i think its time for new plugs... 50k miles. I have a superchips tuner installed with 93 octane tune..My 2010 jk seems rough on start up and idle. My question is, what spark plugs did any of u go with. My guess is to use factory champions.. But open to any suggestions. Thank you
JK Freak
Joined: Apr 2011
Posts: 537
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From: Somewhere Out There
So i think its time for new plugs... 50k miles. I have a superchips tuner installed with 93 octane tune..My 2010 jk seems rough on start up and idle. My question is, what spark plugs did any of u go with. My guess is to use factory champions.. But open to any suggestions. Thank you
Might give them a try.
Sponsoring Vendor
Joined: Jun 2011
Posts: 1,546
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From: Pompano Beach, Florida
So i think its time for new plugs... 50k miles. I have a superchips tuner installed with 93 octane tune..My 2010 jk seems rough on start up and idle. My question is, what spark plugs did any of u go with. My guess is to use factory champions.. But open to any suggestions. Thank you
$64.99
Former Member
Joined: Mar 2007
Posts: 1,195
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From: The great State of Reality
Not broken = don't fix
Get the guy trying to sell you on this to pay for it.
These ain't 2 strokers or Jap scrap.
Start playing with plugs and wires and you could be opening a can of worms when you don't need to. Unless you've been playing with or pressure washing them when the engine is hot there's no need to even think about them.
This isn't a 70's carburated engine.
Get the guy trying to sell you on this to pay for it.
These ain't 2 strokers or Jap scrap.
Start playing with plugs and wires and you could be opening a can of worms when you don't need to. Unless you've been playing with or pressure washing them when the engine is hot there's no need to even think about them.
This isn't a 70's carburated engine.
Last edited by 101gargoyles; May 18, 2013 at 12:44 AM.
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JK Enthusiast
Joined: Jan 2012
Posts: 460
Likes: 0
From: Windsor NS
Not broken = don't fix
Get the guy trying to sell you on this to pay for it.
These ain't 2 strokers or Jap scrap.
Start playing with plugs and wires and you could be opening a can of worms when you don't need to. Unless you've been playing with or pressure washing them when the engine is hot there's no need to even think about them.
This isn't a 70's carburated engine.
Get the guy trying to sell you on this to pay for it.
These ain't 2 strokers or Jap scrap.
Start playing with plugs and wires and you could be opening a can of worms when you don't need to. Unless you've been playing with or pressure washing them when the engine is hot there's no need to even think about them.
This isn't a 70's carburated engine.
JK Newbie
Joined: May 2013
Posts: 11
Likes: 0
From: Bear Lake, Idaho
Pull a plug and take a look at it. If replacement is needed, factory Champion as you mention is the way to go. From what I have heard about the 3.8L it would seem possible to me the plugs could be in rough shape if the engine is having some of the issues that have plagued it. Example: oil burning.
JK Freak
Joined: Jan 2009
Posts: 845
Likes: 3
From: Scituate, MA
Bought OEM Champions on eBay. Replaced mine at 43k. Didn't want to fight them. Used anti seize on threads and silicone grease on plug boots. Be very careful removing the boots. There is a thread or two on the forum. I tried to explain the replacement process on the forum. Don't forget to lay the hood all the way back on the roof and use a stool. Good luck