Thread: 6.0 sparkplugs
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Old 06-22-2012, 09:32 PM   #9
gregory5000
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Join Date: Feb 2010
Location: elora tn
Posts: 121
Re: 6.0 sparkplugs
I just traded a 2002 Olds van and it had the factory plugs in it. 171K miles and still got 25-27 MPG. You cannot do better than the factory plugs.
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2001 GMC 2WD, 1998 Chevy K2500
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