2024 Chevy Duramax Oil Capacity Lt. Checking with general motors, the lz0 duramax diesel has an “acceptable oil usage” range with up to 1 quart per 2,000 miles, or more if you are doing a lot of towing or. My 2020 6.6 would go to 80 psi when cold.

The op says that he put in 10 quarts during his latest oil and filter change,. You will need 7 quarts of engine oil and dexos d oil 0w20 is required.