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I used penzoil when I first got my truck and almost did the same thing but my hemi broke a valve and scorched the piston but it was covered under warranty I will never use penzoil again too MOBIL 1 full synthetic 5w?? and no problems yet in the new hemi.
sorry to hear about the hemi glad you got it back on the road.??
5w20--mobile 1 now and wix filter....yeah it was a pain in the ass but i did a quick turn around on it....truck it running good just put in cai back on this moring to head to work
it depends on the year of the truck! mine is 5w20 most new mds trucks are 5w30 they changed alot around in 05 before mds motor were put in i got a split yr truck made in dec 05 before jan 06