Oil Capacity- Oil Type - Viscosity
Helpful Information for 2001-Current Duramax owners
Trucks driven primarily in colder weather conditions, below 0 degrees F, can substitute the 15w-40 viscosity for 5w-40. Synthetic oils can be used as long as they are the correct viscosity.
DmaxStore recommends Chevron Delo 15w-40 oil for LB7 and LLY engines, Mobil1 Delvac 15w-40 oil for LBZ, LMM, LML, and L5P engines, and ACDelco 0w-20 DexosD oil for LM2 and LZ0 engines.
| Oil Capacity | 10 quarts / 2.5 gallons |
| Viscosity | 15w-40 |
| Oil Filter for 2001-2019 Model Years (6.6L Only) | ACDelco PF2232 |
| Oil Filter for 2020-2023 Model Years (6.6L Only) | ACDelco PF26 |
| Oil Filter for 2024+ Model Years (6.6L Only) | ACDelco PF63 |
| Oil Filter for 2019+ Model Years (3.0L Only) | ACDelco PF66 |