The 2016 Chevrolet Impala requires Dexos1 Gen 2 synthetic motor oil. The exact viscosity depends on the engine in your car: 0W-20 for the 2.5L four-cylinder and 5W-30 for the 3.6L V6. Always verify the grade on your oil fill cap or in the owner's manual for your specific vehicle.
In this article, we break down the two engine options and how to choose the right oil, including the Dexos specification and practical tips for ensuring you use the correct grade and stay within warranty guidelines.
Engine options and their oil needs
The 2016 Impala was offered with two engines. This quick reference shows the recommended oil type and viscosity by engine so you can confirm what to use.
- 2.5L inline-four engine — Dexos1 Gen 2 synthetic motor oil, viscosity 0W-20.
- 3.6L V6 engine — Dexos1 Gen 2 synthetic motor oil, viscosity 5W-30.
Using the correct Dexos1 Gen 2 oil and viscosity helps protect the engine, maintain performance, and uphold warranty requirements. If you’re unsure which engine your Impala has, check the VIN plate, the owner's manual, or consult your dealer.
Practical tips for service and maintenance
To ensure you’re always using the right oil, follow these guidelines:
- Look for Dexos1 Gen 2 certification on the oil label. This guarantees compatibility with GM engines that require Dexos.
- Match the viscosity to your engine. The 2.5L uses 0W-20; the 3.6L uses 5W-30. Climate and driving conditions can influence lubricant performance, but the Dexos spec stays essential.
- Consult the owner’s manual or the oil cap under the hood for the exact grade and capacity, and follow the recommended service interval.
If you have a vehicle that sits in extreme heat or cold, or you drive aggressively, consider speaking with a GM-certified technician for any adjustments to the standard oil grade or oil-change interval.
Summary
For a 2016 Chevy Impala, use Dexos1 Gen 2 synthetic motor oil. The two engine options specify different viscosities: 0W-20 for the 2.5L I4 and 5W-30 for the 3.6L V6. Always verify the exact grade on the oil filler cap or in the owner's manual, and follow GM’s service intervals to maintain performance and warranty coverage.


