I tried both and prefer Schaeffer's Supreme 7000 SAE 15W-40.Cat3406e;1561854; said:Has anyone tryed both of these oils. Which ones did the like. Schaffer oil 15W-40 Semi blend or Amsoil fully synthetic??? Which ones gave better results. Longer oil change intervals, Better MPG. and so one
Thank you
Esso is an Exxon/Mobil company. They don't offer Esso lubes in the US. Where are you located?DRoc;1569763; said:Esso Extra 0W40 gets my vote. Full PAO Group IV. Quick easy starts even at -30. Good price too.
If the amsoil is doing such a great job of reducing wear, why not leave the filter on there for 20k?bthurta;1562116; said:Go with Amsoil 15W-40, change the filter @ 10k & oil/filter @ 20k.
WOW--that speaks volumes.Thanks for the honesty.hotrent1;1579438; said:schaeffers 9000 is what i used on 04.5 lly for 160000 miles, and after break-in i will do the same with my lbz. I am an amsoil dealer, but i like the schaeffers for my duramax., I do use the amsoil dual bypass filter system tho