- May 1, 2025
- 6
- 16
- Thread starter
- #21
I live in AZ so deal with the dust much like you I imagine.A while back there was a Duramax filter test on YouTube. The OEM AcDelco filter flowed and filtered better than most competitors. They cost a lot nowadays, so expensive to change. Mine was plenty dirty at 10k, but it was still functional. I drive in a lot of dusty conditions so an OEM would get changed at 10k. A dry flow would get cleaned at 5k when I did my oil changes.