Gasoline Yukon models with the 5.3L or 6.2L V8 engines use Dexos1 Gen 2 5W-30, while the available 3.0L Duramax diesel requires Dexos2 5W-40. Always verify the exact specification in your owner’s manual or with a dealer, especially for climate and driving conditions.
Engine oil requirements
Gasoline engines (5.3L V8 and 6.2L V8)
The following guidance covers the gasoline-powered Yukon engines. Details below explain the oil type and weight recommended by GM for these drivetrains.
- Dexos1 Gen 2 5W-30 — GM-approved full synthetic or synthetic-blend engine oil for the 5.3L and 6.2L V8 engines.
Using the correct Dexos1 Gen 2 5W-30 helps ensure proper lubrication, cold-start performance, and emissions compliance. Follow GM’s recommended maintenance intervals for oil changes based on driving conditions.
Diesel engine (3.0L Duramax)
The Duramax turbo-diesel option requires a different specification due to its engine design and emissions system.
- Dexos2 5W-40 — GM-approved full synthetic oil for the 3.0L Duramax diesel engine.
Diesel engines like the Duramax often have different oil formulation needs and service intervals. Always use Dexos2 5W-40 and consult the manual for diesel-specific maintenance guidance.
Summary
In brief, the 2022 GMC Yukon uses Dexos1 Gen 2 5W-30 for gasoline engines (5.3L and 6.2L) and Dexos2 5W-40 for the 3.0L Duramax diesel. Confirm the exact specification for your vehicle in the owner’s manual and adjust for climate and driving conditions as recommended by GM.