How often should I change the oil if I don't drive much?

[Myron]

Change the oil within 12 months even if the vehicle isn't driven much. The oil change procedure is as follows: 1. Run the engine until it reaches operating temperature; 2. Engage the parking brake and lift the vehicle; 3. Unscrew the oil filter and drain the old oil; 4. Apply new oil to the gasket of the new filter; 5. Pour new oil into the oil pan; 6. Check for leaks under the engine; 7. Lower the vehicle, check the dipstick, and start the engine; 8. Turn off the engine and recheck the oil level. The functions of engine oil are: assisting in engine lubrication and friction reduction, cooling, sealing and leak prevention, rust and corrosion protection, and shock absorption.