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5w30, whatever brand you want. I run 5w30 Full Synthetic Pennzoil throough mine, and will keep running that. thought bout Amsoil, but I change my oil at 5k no matter what. Royal Purple is a high quality oil though, and there is nothign wrong with running it.
Just stay away from Fram filters, if possible. I run Fram, but I need to stop.
ASE Master Tech, L1 Advance Engine Performance certified
I will not answer repair questions by PM, if you would like my input you can PM me and ask me to reply to your public thread.
I think it really comes down to personal preferences. But as everyone has said use a good filter. alot of times I use ac/ delco filters.
04 suburban leather loaded
Supercharged 9 psi boost
Electric fan conversion
Triple pillar mount with gauges
Summer tires - 20 inch chrome with cooper H/T plus
Winter tires - stock rims with Bridgestone APT
Energy suspension kit
Air bagged rear end
Prodigy p3 brake controller
Your vehicle can go as fast as you wallet will let it
Buy a hybrid I need your gas
As always, Drive it like you stole it
my truck has 239,000 miles on it and i use 5w30 royal purple synthetic with the synthetic K&N oil filter its a noticable difference with running full synthetic, works great for high aaand really high mileage engines.
My 2006 1500 5.3L burns oil in between oil changes no matter what type I use. I have used AMS oil Pennzoil and what ever the dealer uses. The dealer says the 5.3L burns 1-2 quarts every 3,000 miles and that is what happens no matter what oil I use. any suggestions?