2024 Gmc Duramax Oil Capacity. Though there are a ton of oil brands, the two most important aspects are change intervals and weight. But the oil capacity decreases to 9.2 quarts without a filter.

Your duramax will take 10 qts (2.5 gal) of oil in the engine with the filter change. 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 relevant replacement parts.