2002 Chevrolet Tahoe: What is the oil type and capacity?

Depending on Your chosen configuration, Your 2002 Chevrolet Tahoe may have either A4.8L V8 engine, or a larger 5.3L V8. Furthermore, the 5.3L also comes in a FlexFuel variant. Regardless, Your oil type will be SAE 5W-30 full synthetic, with A6.0 quart capacity. In an emergency, it's possible to use SAE 5W-40 conventional; however, this is not advisable. The higher the numbers in an oil's weight, the thicker its viscosity; this can lead to premature engine wear after introducing friction into the system. Therefore, it's important to use the manufacturer's specified oil with the lowest numbers. In the case of a 2002 vehicle, You should also seriously consider looking into high mileage oil. You'll thank Yourself for a long life for Your Tahoe.