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December Specials at Jeephut.comROCK BOTTOM prices on LIFT KITS at Rockridge4wd!! WANT TO Alloy usa heavy duty ball joint kits

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Unread 12-21-2010, 10:50 AM   #1
KISSlover101
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2008 KK Liberty 
 
Join Date: Sep 2009
Location: San Carlos, CA
Posts: 29
Spark Plugs

What brand of spark plugs are good to use? How often should they be changed? I have the NGK iridium IX in my liberty currently and i'm coming up on 30k miles.

UPDATE: I have an 08 Libby


Last edited by KISSlover101; 12-21-2010 at 01:53 PM..
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Unread 12-21-2010, 01:03 PM   #2
Nick_Knipp
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1986 MJ Comanche 
 
Join Date: Oct 2010
Location: Warner Robins, Georgia, Georgia
Posts: 1,982
regular champion plugs are perfect for a Jeep. nothing fancy or NASCAR quality, leave that to crappy Hummers
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Unread 12-21-2010, 02:20 PM   #3
Elt31987
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2008 KK Liberty 
 
Join Date: Mar 2009
Location: Stoneham, Massachusetts
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The spark plugs are NGK ZFR6F-11G 6987. Amazon.com: NGK (6987) ZFR6F-11G V-Power Spark Plug, Pack of 1: Automotive . These are what i used, i only stick with OEM on the spark plugs, its not worth buying the expensive ones.
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2008 KK Liberty
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JBA Gen 5.5 Upper Control Arms
Rokmen Riddler 8.25 Differential Cover
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Unread 12-21-2010, 02:29 PM   #4
SuperRliBerty
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2008 KK Liberty 
 
Join Date: Jan 2010
Location: Florida
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The stock NGK are what I use. stay way from ac delco

Don't forget to service the transmission and Differential.
41yvngu-8kl.jpg  
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Unread 12-27-2010, 09:23 AM   #5
rgarnsey
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2008 KK Liberty 
 
Join Date: Nov 2010
Location: Ashburn, VA
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I also use the stock NGK plugs. I've changed them twice already at 30K and 60K without any problems and the all the plugs have worked great as far as I can tell. No need to pay extra for anything else.
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