2025 Duramax Oil Capacity V6

2025 Duramax Oil Capacity V6. The oil capacity of the 6.6 duramax engine is 10 quarts, including the oil filter. 6.6l duramax l5p maintenance schedule and service information, including service part numbers, oil and fluid specifications, and fluid capacities.

Factory fill is delvac 15w40. The charts listed below are based off of gm’s recommended l5p duramax maintenance and.