The 2010 Chevy Impala uses Dexos1-certified 5W-30 engine oil (synthetic or synthetic-blend). The exact amount you need depends on the engine option, and you should fill to the proper level with a fresh filter in place.
Engine options and oil requirements
The 2010 Impala offered a pair of gasoline V6 engines, both generally using the same Dexos1 5W-30 specification, with differing oil capacities. Details below.
- 3.5L V6 engine: Dexos1 5W-30; oil capacity approximately 4 quarts (3.8 L) with filter.
- 3.9L V6 engine: Dexos1 5W-30; oil capacity approximately 5 quarts (4.7 L) with filter.
Always verify the exact capacity for your VIN and engine by checking the owner's manual or the service sticker under the hood, and use the dipstick to confirm the proper oil level after a change.
Oil viscosity and certification details
For both engines, GM recommends Dexos1-certified 5W-30 motor oil. You may choose either full synthetic or synthetic-blend oil that carries the Dexos1 certification. Following the recommended oil type helps maintain engine protection and fuel economy, and it aligns with GM’s warranty guidelines. Service intervals depend on driving conditions and oil type (conventional vs. synthetic), so consult the owner's manual for the precise schedule and consider more frequent changes under severe use.
- Dexos1-certified 5W-30 oil is preferred for the 2010 Impala engines.
- Oil can be synthetic or synthetic-blend as long as it meets Dexos1 certification.
If you cannot find Dexos1-certified 5W-30, consult your owner's manual or a GM service professional for the recommended alternative based on your climate and driving habits.
Other practical notes
Check the oil fill cap for viscosity guidance, and use the dipstick to ensure you stay within the recommended range after topping up. When in doubt, defer to the manual or a trusted GM technician to confirm the exact specification for your specific model and engine.
Summary
In short, a 2010 Chevy Impala requires Dexos1-certified 5W-30 oil, with about 4 quarts needed for the 3.5L engine and about 5 quarts for the 3.9L engine (both with filter). Use either synthetic or synthetic-blend oil that carries the Dexos1 certification, and follow the maintenance interval guidelines in the owner's manual based on your driving conditions.