2026 GMC Sierra 1500 Oil Type & Capacity
The 2026 GMC Sierra 1500 uses 5W-30 or 0W-30 or 0W-20 oil, with a capacity of about 6-8 quarts depending on the engine.
Key takeaways
- Oil: 5W-30/0W-30/0W-20, about 8 quarts with a filter change.
- Grade and capacity vary by engine - match your exact engine.
- Change the oil filter every time you change the oil.
| Engine | Viscosity | Capacity |
|---|---|---|
| 4.3L V6 | 5W-30 | 6 qt / 5.7 L |
| 2.7L Turbo | 0W-30 | 6 qt / 5.7 L |
| 5.3L V8 | 0W-20 | 8 qt / 7.6 L |
| 6.2L V8 | 0W-20 | 8 qt / 7.6 L |
| 3.0L Duramax Diesel | 0W-20 | 7 qt / 6.6 L |
Capacities are with an oil-filter change. Confirm on the dipstick after refilling.
Oil & filter for the 2026 GMC Sierra 1500
You need 5W-30 oil (8 quarts with a filter change). Buy the oil and a filter together; a DIY oil change takes about 30 minutes, or any shop can do it.
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Shop 5W-30 oil + filterFrequently asked
How much oil does a 2026 GMC Sierra 1500 take?
It depends on the engine: 4.3L V6 takes 6 qt; 2.7L Turbo takes 6 qt; 5.3L V8 takes 8 qt; 6.2L V8 takes 8 qt; 3.0L Duramax Diesel takes 7 qt.
What kind of oil does a 2026 GMC Sierra 1500 use?
5W-30 or 0W-30 or 0W-20 full-synthetic motor oil.
Can I use a thicker oil instead of 5W-30?
Stick with 5W-30. Modern engines spec a low-viscosity oil for fuel economy and tight clearances; a thicker grade can reduce mpg and may affect your warranty.
See where this sits in our study of the most common engine oil viscosities in the US.