The 2015 Chevrolet Impala requires Dexos1 Gen 2 motor oil. The exact viscosity depends on the engine: the 2.5L inline-four typically uses 0W-20, while the 3.6L V6 uses 5W-30. Always verify with the owner's manual or the under-hood oil filler cap.
Engine oil by engine
The following details the recommended oil specification for each engine option available in the 2015 Impala.
2.5L EcoTec I-4
Oil specification for the 2.5L engine in the 2015 Impala.
- Dexos1 Gen 2 certified motor oil
- Viscosity: 0W-20 is recommended
- Usage: Follow GM service intervals for oil and filter changes
Always verify viscosity and Dexos specification on the owner's manual or the under-hood label.
3.6L V6
Oil specification for the 3.6L engine in the 2015 Impala.
- Dexos1 Gen 2 certified motor oil
- Viscosity: 5W-30 is recommended
- Usage: Follow GM service intervals for oil and filter changes
Again, confirm the exact viscosity in the owner's manual or on the under-hood label to ensure accuracy for your vehicle and climate.
Summary
In short: use Dexos1 Gen 2 motor oil for the 2015 Impala. The typical viscosities are 0W-20 for the 2.5L I-4 and 5W-30 for the 3.6L V6; always check the manual or under-hood sticker to confirm the correct specification for your model.