2024 6.6l Duramax Oil Capacity. The l5p duramax diesel can be found in 2017 to current model year chevrolet silverado 2500hd/3500hd and gmc sierra 2500hd/3500hd pickup trucks. Add fluid or oil if you are at or below the fill or minimum mark.
I do jack up the front to get under, and drain it, and punch a hole in the filter, then jack up the back to cheak oil levels, and grease, then lower the back, to finish the oil. The oil capacity of the 6.6 duramax engine is 10 quarts, including the oil filter.