2024 Gmc Duramax Oil Capacity. 6.6l duramax oil change guide, including motor oil requirements (viscosity charts and api categories), engine oil recommendations, oil change procedures, service intervals, and a list of. Increased engine coolant flow rate for more efficient.

High capacity engine oil cooler providing up to 50% greater engine oil cooling efficiency than the design found on the 6.6l duramax lml. In 2020, gm’s engineers overhauled the trucks and increased tow capacity by 52%.