Oil

MrMarco · 2026-09-17T08:55:26-0500

What oil are yall running in the 3.0 diesel at4 trucks? I’m in Texas.

gemarsh · 2026-09-17T09:02:12-0500

gemarsh · 2026-09-17T09:08:50-0500

A quick search on this forum resulted in this...

Good video up on YT from DemonWorks on oil filter options: CHEAP vs premium Oil Filters for Duramax 3.0 + TurboMax 2.7

www.at4forum.com

R467X · 2026-09-17T11:42:43-0500

MrMarco said:
What oil are yall running in the 3.0 diesel at4 trucks? I’m in Texas.

I exclusively use amsoil on all my rigs. I pay their membership fee and it's cheap. I change my oil often - every 3-5k or 6 months.

ltglenn13 · 2026-09-17T15:49:35-0500

I switched to Amsoil also. 2nd the membership. Swapping all my fluids to Amsoil. I change at 5k and 6 months also.

GMC AT4 Forum Photos