The 2014 Silverado 1500 generally requires Dexos1 Gen 2 certified motor oil, with 5W-30 being the standard viscosity for most configurations. Always confirm the exact specification for your engine and climate in the owner's manual or on the oil cap.
Engine options and oil specifications
The Silverado 1500 lineup for 2014 includes several gasoline engines. All of them require Dexos1 Gen 2 oil, and the typical viscosity recommended is 5W-30. Climate and engine type may influence the exact grade, so it’s important to verify your specific model’s requirements.
To help you choose, here are the common engine options and the oil spec they use:
- 4.3L EcoTec3 V6: Dexos1 Gen 2, commonly 5W-30 (synthetic or synthetic-blend)
- 5.3L EcoTec3 V8: Dexos1 Gen 2, commonly 5W-30 (synthetic or synthetic-blend)
- 6.2L EcoTec3 V8: Dexos1 Gen 2, commonly 5W-30 (synthetic or synthetic-blend)
Note: Always verify the exact viscosity and oil grade in your owner's manual or on the oil filler cap, as specifications can vary by engine and climate.
Synthetic vs. conventional oil
Dexos1 Gen 2 oils are typically available as full synthetic or synthetic-blend formulations. For maximum protection, especially under towing, hot or cold extremes, a synthetic or synthetic-blend Dexos1 Gen 2 oil is recommended. Using oil that is not Dexos1 Gen 2 compliant may not meet GM warranty requirements.
Summary
For a 2014 Chevy Silverado 1500, use Dexos1 Gen 2 certified oil, with 5W-30 being the most common viscosity across the standard engine options (4.3L V6, 5.3L V8, and 6.2L V8). Always check the owner’s manual or oil cap for your specific engine and climate requirements, and choose a synthetic or synthetic-blend formulation to ensure optimal protection and longevity.


