The 2021 Chevrolet Silverado with the 2.7-liter turbocharged engine runs on Dexos1 Gen 2 0W-20 synthetic motor oil, and a typical full oil change uses about 6 quarts with the filter installed.
Experts and owners alike should note that GM specifies a Dexos1 Gen 2-compliant 0W-20 synthetic for this engine to meet warranty and emissions requirements. Using a non-Dexos1 Gen 2 oil or an incorrect viscosity could affect performance, fuel economy, and coverage under GM’s warranty. Always refer to the owner's manual and the vehicle’s oil-life monitor for exact intervals and approvals based on your driving conditions.
Oil specifications
Here are the official specifications you should follow for the Silverado’s 2.7L Turbo:
- Oil type and specification: Dexos1 Gen 2
- Viscosity: 0W-20
- Oil type: Full synthetic motor oil
- Compliance: Meets GM Dexos1 Gen 2 requirements
Following these specifications helps maintain engine protection, efficiency, and warranty compliance across varying climates and driving styles.
Oil capacity and maintenance notes
Before listing the practical details, it’s helpful to understand the essential capacity and service considerations for the 2.7L Turbo:
- Oil capacity (including filter): about 6 quarts (roughly 5.7 liters)
- Filter: Oil filter is included in the change; ensure a new filter is installed
- Change interval: Use the GM Oil Life Monitor as your guide; typical intervals vary with driving conditions and may range from normal to more frequent during severe duty
Always perform oil changes using the correct viscosity and specification, and reset or follow the Oil Life Monitor after service to ensure accurate reminders for the next change.
Where to source Dexos1 Gen 2 0W-20 oil
When shopping for the oil, look for products that explicitly state Dexos1 Gen 2 compatibility and 0W-20 viscosity. Consider these options:
- Major brands that offer Dexos1 Gen 2 0W-20 synthetic oil (examples include Mobil 1, Pennzoil, Castrol, Valvoline, and others) – verify the label confirms Dexos1 Gen 2
- GM-approved kits or the original equipment service products recommended by your dealer
- Consumer-grade synthetic oils labeled 0W-20 that do not specify Dexos1 Gen 2 should be avoided for this engine
Check the bottle for the Dexos1 Gen 2 logo and the 0W-20 specification to ensure compatibility with the Silverado’s engine and warranty terms.
Summary
For the 2021 Silverado with the 2.7-liter turbo engine, use Dexos1 Gen 2 0W-20 synthetic motor oil and plan for roughly 6 quarts per oil change (including the filter). Follow the Oil Life Monitor and the owner's manual for exact change intervals, and source oil products that clearly meet Dexos1 Gen 2 specifications to maintain performance and warranty protections.
What is the best oil for a 2021 Chevy Silverado 1500 2.7 turbo?
The top Chevy Silverado 1500 oil is ACDelco dexos1 SAE 0W-20 full synthetic motor oil for the 5.3L and 6.2L gasoline engines. For the smaller 2.7L TurboMax high-output engine, you'll need ACDelco dexos1 SAE 5W-30 full synthetic oil.
Can I use 5W-30 instead of 0W-20 in Silverado?
Yes, you can use Dexos1 Gen 2 or Gen 3 5W-30 in your 2025 Silverado engine while you're in a specific location, especially if 0W-20 is unavailable. It is recommended to use 0W-20 for fuel economy (CAFE standards), but the 5.3L Gen V V8 engine is mechanically capable of running 5W-30, particularly in hot climates.
How much oil does a 2021 Silverado 2.7 L turbo take?
Approximately 6 quarts
2.7L Turbo I4: Approximately 6 quarts.
What kind of oil does a 2.7 l Chevy Silverado take?
For late-model Silverado 1500 engines, GM service guidance calls for these oil types: 5.3L V8 (L84): dexos1, SAE 0W-20 TechLink. 6.2L V8 (L87): dexos1, SAE 0W-20 TechLink. 2.7L Turbo (L3B): dexos1, SAE 5W-30 TechLink.