What are the symptoms of insufficient engine oil?
2 Answers
Symptoms of insufficient engine oil include: 1. Corresponding warning lights illuminate on the dashboard; 2. A burnt engine oil smell inside the vehicle; 3. High engine coolant temperature, valve noise, knocking sounds, and cylinder scoring. The functions of engine oil are: 1. Lubrication: Creating an oil film between sliding components to minimize wear; 2. Cooling assistance: Transferring heat back to the oil pan for dissipation into the air, aiding radiator cooling; 3. Cleaning: Circulating carbon deposits, sludge, and metal particles back to the oil pan to flush contaminants from engine components; 4. Forming a seal between piston rings and pistons to reduce gas leakage and prevent external contaminants from entering.
Recently when I was driving, I noticed the engine noise was unusually loud, sounding like a tractor especially during acceleration. The oil pressure warning light on the dashboard (the small oil can icon) also came on, indicating low oil level. After stopping to check the dipstick, I confirmed the oil level was below the minimum mark. If I didn't add oil promptly, the engine could overheat or even damage critical components, potentially costing thousands in repairs. This also affects performance - struggling on inclines and increased fuel consumption. Now I've developed the habit of checking oil levels monthly, glancing at the dipstick before starting the engine, and keeping a spare oil bottle in the trunk just in case.
