What Motor Oil do you all prefer?

[Got Diesel?]

I use to use pennzoil 15w40, but I cant find it at any of the local stores in my area that sell motor oil, so I started using pennzoil 10W40 motor oil.

What motor oil do you all use and prefer?


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1997 F-250 4x4 EC, SRW, LB, 4x4, 5 Speed
182525 miles
k&n cold air intake
3 inchdown pipe
3 inch straight exhaust (very temp., its coming off and a set of 5inch stacks are coming soon)
auto meter ultra-lite boost (0-30 psi) gauge
auto meter ultra-lite pyrometer gauge
auto meter ultra-lite trans gauge

[Raul@Stealth Automotive]

i prefer Rotella 15w40.. i can get it at any kragen auto parts store....

[460+]

I use valvoline 15w40,Napa carries it.

[slammedSI]

i only use motorcraft. will never change.

[Tim99ws6]

Amsoil here before that i was Rotella

[codman02]

AMSOIL all the way,, front to back everthing, even all me grease zerts

[460+]

I bought my trk had 42000 miles had Motorcraft oil & between oil changes was loosing 2-3 qrts,switched to Valvoline no problems,82000+miles.

[jostaman]

amsoil all the way

[slammedSI]

Originally Posted by 460+

I bought my trk had 42000 miles had Motorcraft oil & between oil changes was loosing 2-3 qrts,switched to Valvoline no problems,82000+miles.

I dont see how that would be, i would bet money you had another problem ..

[Redneck47441]

Rotella T I get it at TSC or Walmart