My son and a buddy are driving from NC to CA this summer with various stops in National Parks along the way. Their vehicle is a 2005 Suburban w/175k miles, 2WD with a 5.7l motor. We are in the process of sorting out the mothership for the journey, doing what you'd expect mechanically and the boys have taken out the rear seats and rigged up sleeping/living quarters when camping is not an option. It has been a fun project. Last on my list before they take off is going to be an oil change using a Wix XP oil filter. Their route is still in flux but the estimated round trip will exceed 8000 miles. I have in my current oil stash the following and my question is which one would be best suited for this type of journey?
M1 5W-30
M1 0W-30
Valvoline Syn Power 5W-30
Castrol GTX Magnatec 5W-30
Another thought is to exchange the M1 for M1 extended performance 5w-30. Thanks
M1 5W-30
M1 0W-30
Valvoline Syn Power 5W-30
Castrol GTX Magnatec 5W-30
Another thought is to exchange the M1 for M1 extended performance 5w-30. Thanks