What Happens When a Car Runs Low on Engine Oil?

[DeRobert]

When a car runs low on engine oil, the following situations may occur: 1. Increased engine noise; 2. Elevated water temperature, valve noise, knocking sounds, cylinder scuffing, and damage to the engine's mechanical components. The functions of engine oil are: 1. To facilitate sliding between the piston and cylinder, as well as between the crankshaft and bearings, preventing part wear; 2. Assisting in cooling; 3. Cleaning carbon deposits and sludge from engine parts; 4. Sealing to prevent gas leaks and the entry of external contaminants; 5. Rust and corrosion prevention; 6. Shock absorption; 7. Anti-wear. The steps for changing engine oil are: 1. Lift the car, remove the undercover, and place a container of about 10 liters under the drain plug; 2. Unscrew the drain plug, use an air gun to blow into the oil filler port for two minutes, then tighten the drain plug after the oil is fully drained and check for leaks with a tissue; 3. Reinstall the undercover, lower the car, and add new oil using a funnel aligned with the filler port.