However, generally speaking, a 2001 Chevy Tahoe will likely use one of the following:
* SAE 5W-30: This is a common viscosity grade for many GM vehicles, and a good starting point if you don't have your owner's manual.
* SAE 10W-30: Also possible, depending on the engine and climate.
Crucially: The owner's manual will also specify the oil type (conventional, synthetic blend, or full synthetic). Using the incorrect type of oil can damage your engine.
Where to find the information:
* Your owner's manual: This is the most reliable source.
* The oil fill cap: Sometimes the recommended oil type is printed on the oil fill cap.
* A sticker under the hood: Check for a sticker that might list maintenance information.
Don't guess. Refer to your owner's manual to ensure you use the correct oil for your specific 2001 Chevy Tahoe.