2024 Chevy Duramax Oil Capacity. My 2020 6.6 would go to 80 psi. Oil pressure is between 19 and 21 psi once in a while it will jump to 37 but drop right back down to 19 regardless of engine temp.
6.6l duramax l5p maintenance schedule and service information, including service part numbers, oil and fluid specifications, and fluid capacities. Always refer to your ownerโs.