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pz2b46
07-17-2007, 17:36
I recently purchased a 2004.5 GMC HD 2500 ( 45000 miles) and would like any info on synthetic engine oil ? And which filters were used?

murphyslaw
09-16-2007, 23:37
you can refure to my post here for my Experience with a Para-Synthetic oil.

LINK (http://www.thedieselpageforums.com/tdpforum/showpost.php?p=221979&postcount=20)