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DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 GMC Yukon XLOil Type & Capacity
OEM spec from the factory service manual for the Denali, 3.0L Eng VIN T, 4WD variant.
Quick Answer
Oil Type
API - SAE 0W-20
Capacity (w/ Filter)
7.00 QTS.
6.62 L
Variant
Denali, 3.0L Eng VIN T, 4WD
Note: Engine oils that have been approved by GM as meeting the dexosD specification are marked with the dexosD approved logo.
Source: Factory service manual — 2021 GMC Yukon XL Denali, 3.0L Eng VIN T, 4WD. View full manual section →
What You'll Need
Frequently Asked Questions
- What type of oil does a 2021 GMC Yukon XL take?
- The 2021 GMC Yukon XL requires API - SAE 0W-20. The exact spec may vary slightly by engine variant — this page shows the OEM recommendation for the Denali, 3.0L Eng VIN T, 4WD configuration.
- How much oil does a 2021 GMC Yukon XL need?
- The 2021 GMC Yukon XL takes 7.00 QTS. (6.62 L) of engine oil with the filter replaced.
- Can I use synthetic oil in my 2021 GMC Yukon XL?
- Yes — synthetic oil that meets the API - SAE 0W-20 specification is acceptable and often preferred for better protection and longer change intervals.
- What happens if I use the wrong oil in my 2021 GMC Yukon XL?
- Using oil that does not meet the API - SAE 0W-20 specification can reduce engine protection, increase wear, and potentially void warranty coverage. Always use oil that meets the OEM spec.