The owner's manual will specify the recommended oil viscosity (like 5W-30 or 10W-30) and the type of oil (conventional, synthetic blend, or fully synthetic). Using the wrong oil can damage your engine.
If you don't have the owner's manual, you can:
* Check the oil fill cap: Sometimes the recommended oil type is printed on the cap.
* Look for a sticker under the hood: Many cars have a sticker with maintenance information, including oil type.
* Use your vehicle identification number (VIN): You can use the VIN to look up your car's specifications online through a reliable parts website or your local Chevy dealer.
Don't rely solely on online forums or general advice. Always consult your owner's manual for the definitive answer.