The 2009 Chevy Impala generally requires 5W-30 motor oil that meets GM’s Dexos1 specification (suitable in either synthetic blend or full synthetic form), with an oil capacity of about 5 quarts plus the filter.
The Impala for 2009 offered two V6 engine options—the 3.5L and the 3.9L—and both use oil that aligns with Dexos1 standards. Always verify the exact specification on your vehicle’s oil filler cap or in the owner’s manual, and follow the recommended oil-change intervals for your climate and driving conditions.
Oil specifications and how to choose
Key oil specs and how to choose for the 2009 Impala:
- Viscosity: 5W-30 is recommended for both the 3.5L and 3.9L engines under typical operating conditions.
- Specification: Dexos1 Gen 1 certified motor oil.
- Oil type: Synthetic blend or full synthetic oil is acceptable, as long as it is Dexos1 certified.
- Capacity: Approximately 5 quarts of oil with the filter; fill to the proper level using the dipstick and recheck after a short drive.
- Substitutes: If Dexos1-certified oil isn’t available, a high-quality API SN/SM 5W-30 may be used as a substitute, but Dexos1 is preferred for optimum protection and warranty considerations.
Concluding: For the 2009 Impala, use 5W-30 Dexos1 certified oil (synthetic blend or full synthetic), plan for about 5 quarts with a filter, and follow the owner’s manual for the recommended change interval based on your driving conditions.
Summary
In short, a 2009 Chevy Impala takes 5W-30 Dexos1-certified motor oil, with an approximate capacity of 5 quarts (plus filter). Use either synthetic blend or full synthetic, and consult the owner’s manual or the oil cap for exact specifications and intervals based on your engine and climate.