Lets hit that horse again! an again!
 

I do not use Mobil One. I have 2 GMC pick ups both with over 290K and they both run and sound great. They have never had anything other than Pennzoil Full synthetic in them. I am using Pennzoil 5-30 full synthetic in my 2004 coupe.

What do you use?

Amsoil

Tats all I use
 

:iagree::lurk:

M-1

Mobil 1 0w40

Amsoil in everything besides motor oil only because all my motor's had in it since day one was Mobil 1 so I just stuck with it. Pull a valve cover and it's still clean as a whistle at 97,000 :) I think the kind of motor oil you run is the most overthought issue ever lol. I think as long as it's synthetic you're good to go, street driving that is.

I've always used Mobil 1 5W30 and am pleased with its performance.

QS Horsepower here.

Was using Mobil 1, now using Amsoil.

Mobil 1, i like the price at wally world

Another Amsoil user. Use it in all my vehicles, including Victory Kingpin.

Amsoil in rear diff and tranny m1 in engine until next oil change then going with amsoil

Mobil1

Mobile One because Mommy told me it was best.:toetap:

Whatever BRAND NAME full synthetic I bet the best buy on,,,and usually Wix filter. In a side bar,,A golf buddy put just shy of 600k on his pickup (that he bought new) with regular service and regular.Was still running fine when he traded in on the Cash for clunkers program.:thumbs::thumbs::cheers:

Amsoil for me

Yep what he said, Amsoil

Any thoughts on Joe Gibbs LS30 5-30 ?

:beatdeadhorse: Mobil 1 :beatdeadhorse: