i bought an 07 liberty with 39k on it and it had a miss... i checked the plugs after reading posts here about them eating plugs.... they were ngk r zfr6f-11g. they were as white as u could get.... i replaced them with ngk6fix-11 irridium ix..... hopefully thiese will last longer because i doubt...
just bought an 07 liberty limited 2 wd like it except for stupid regulater( a lready broke ) and had slight miss to find ngk r's burnt up like its lean fowled..... i take it from research they chew up plugs! wjy is that? mine look like it runs way too lean....any fixes?:eek:
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