2025 6.6 Duramax Oil Capacity

2025 6.6 Duramax Oil Capacity. Duramax's are easy on oil. Revised oil passages include a dedicated turbocharger oil supply circuit for improved lubrication and turbocharger.

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