synthetic oil

[sixpointoh03]

I am running the spartan 310 tune and was thinking about switching to synthetic motor oil. which oil would be the best to run to prolong the life of my engine.

[blackcloud2k]

mobil is a favorite, the rotella syn Ive heard isnt as good as some of the others out there.

[neil64]

I am curious about what negatives you have heard about Rotella Synthetic? I was thinking about switching to it in 2 oils after my engine has about 10K on it.

Thanks..

[08stroker250]

I run Valvoline 5w40 Premium Blue synthetic. My truck loves it!

[ShirtaDay.com]

Any other votes for the Mobil synthetic?

[BIG RED BUBBA]

i just picked up amsoil 5w40 premium diesel oil, i am getting it changed on wednesday, i also got some amsoil engine cleaner so i can clear out the deposits left from regular oil so my engine is nice and clean for my synthetic amsoil i run amsoil in everything, including my diesel pusher motorcoach

[majorleaguebass]

amsoil....

[psdguy97]

AMSOIL all the way.

[storkerlovr]

Originally Posted by BIG RED BUBBA

i just picked up amsoil 5w40 premium diesel oil, i am getting it changed on wednesday, i also got some amsoil engine cleaner so i can clear out the deposits left from regular oil so my engine is nice and clean for my synthetic amsoil i run amsoil in everything, including my diesel pusher motorcoach

the best way to clean out the old oil is to do a couple oil changes

[motowon]

i use amsoil 5w-40.