The 2019 Impala requires Dexos1 Gen 2 synthetic motor oil. Depending on the engine, either 0W-20 for the 2.5L four-cylinder or 5W-30 for the 3.6L V6; always verify in the owner's manual or on the under-hood label.
The Impala lineup for 2019 offered two gasoline engines. Both share Dexos1 Gen 2 oil, but the viscosity varies by engine. The sections below outline the specifics and how to confirm the exact specification for your car, along with maintenance guidance to keep the engine healthy.
Engine options and oil specifications
Here is a concise reference to the two engines and the recommended Dexos1 Gen 2 oil viscosity for each. This helps you choose the correct oil at the store or when checking your manual.
- 2.5L four-cylinder engine: Dexos1 Gen 2-approved synthetic oil, 0W-20 viscosity.
- 3.6L V6 engine: Dexos1 Gen 2-approved synthetic oil, 5W-30 viscosity.
Note: These specifications align with typical 2019 Impala configurations. Always verify by checking the under-hood oil cap, the driver’s doorjamb sticker, or the owner's manual for your VIN.
How to confirm the right oil for your specific vehicle
To ensure you use the correct oil, check the exact requirement in multiple places and note any regional or model-year variations. The Dexos label may appear on the oil cap or in the engine compartment sticker. If needed, contact a dealer or GM technical support for VIN-specific guidance.
- Inspect the oil fill cap for Dexos1 Gen 2 and viscosity marking (0W-20 or 5W-30).
- Check the owner’s manual lubrication section for the exact specification and capacity.
- Consult your dealership’s service information or GM’s customer support with your VIN for precise guidance.
With the right oil identified, you can proceed to plan regular changes and maintenance using a high-quality synthetic Dexos1 Gen 2 oil.
Maintenance tips and common pitfalls
Follow GM's recommended intervals for synthetic Dexos1 Gen 2 oil changes, which typically reflect normal and severe driving conditions. Using non-Dexos1 Gen 2 or the wrong viscosity can affect lubrication, fuel economy, and warranty coverage. When in doubt, switch to the approved oil at the next service.
Summary
The 2019 Chevy Impala's oil needs are defined by its two gasoline engines. Both require Dexos1 Gen 2 synthetic oil, but the viscosity differs by engine: 0W-20 for the 2.5L four-cylinder and 5W-30 for the 3.6L V6. Always confirm using your owner's manual, the under-hood label, or VIN-specific GM guidance, and follow the recommended change intervals to maintain engine health and warranty coverage.