Synthetic Engine Oil

[pz2b46]

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]

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)