The Great Oil Debate...

[LD5050]

Good video up on YT from DemonWorks on oil filter options:

CHEAP vs premium Oil Filters for Duramax 3.0 + TurboMax 2.7

 

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GEN-Y GH-325 MEGA-Duty Adjustable 10" Drop Hitch - Grab one through Amazon!

[zeeya]

There are 3 on GM's approved list of Dexos D oils, Like Andy said, for the ones that will pay the fee to get the stamp of approval.
I have been running the Mobil 1 Dexos D. Everyone will give you their spill on Amsoil/Royal Purple and the list goes on. Those discussions can get nasty sometimes.

Looks like some others have climbed onto the Dexos D approved oil list for GM.. Just an FYI. Still using Mobil 1 0-20 Dexos D. 66,100 miles