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3rd Gen Ram Tech2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
I am going to be switching to amsoil very soon. Jsut pretty darn expensive, especially when you factor in 12 quarts per oil change. with my old Hemi I used mobile 1 religously and it was fine. I use napa gold filters however been thinking of the k&n filters.
All the name brands will have properties that will go far beyond how long you will leave them in your crankcase. I worked for a Mobil distributer back in the late 70s and it was interesting times with the Mobil 1. Cars back then weren't built with tolerances for such thin oil. People did run it 25k with filter changes every 5k back then and had no problems.
I always use Royal Purple in my two trucks. To me it's the best, but that is just me.
Just changed mine today using Royal Purple. Totalcost $65 with a Mobil 1 oil filter, I was going to try the K&N but they were out of stock. Second oil change with RP, and no problems.