Re: Better Synthetic
I just run a 15W-40, but I only put ~5000mi per year on the truck, so it goes a while between oil changes - that's why I was using synthetic (do i really need to?), but RP seems to be way over hyped. I figured that Rotella synthetic is probably just as good; thought I'd get some input on what everyone else is using.
2004 F350 CCLB 4x4 Dually - EGR Delete, Coolant Filter, 5" Exhaust, Evolution tuner/monitor, Leveling kit & 33's
1960 F250 4x4 - 400/C6