What happens if the engine oil is insufficient?
2 Answers
Effects of insufficient engine oil on a car: 1. Insufficient oil can lead to cylinder scoring. 2. Insufficient oil can cause poor lubrication, resulting in component wear. 3. When the oil level in the engine oil pan is too low, the contact areas such as bearings and journals may suffer from poor lubrication due to the lack of oil, accelerating wear and even causing issues like bearing seizure or crankshaft seizure. Functions of engine oil: 1. Lubrication: Maintains smooth operation between the cylinder and piston, reducing friction between components and minimizing wear. 2. Cooling: Assists the cooling system in lowering the temperature inside the engine to some extent. 3. Cleaning: Removes sludge, carbon deposits, and other impurities adhering to engine parts. 4. Sealing: Seals gases within the engine piston and piston rings, reducing the ingress of external contaminants.
Insufficient engine oil will significantly reduce lubrication effectiveness, increasing friction between internal engine components and making them prone to wear and damage. Over time, the engine may overheat or even suffer cylinder scuffing, manifesting as increased noise, insufficient power, and rising fuel consumption. In more severe cases, the entire engine may be ruined – like when I accidentally missed an oil change interval last time and ended up spending tens of thousands at the repair shop. I recommend developing the habit of regularly checking the dipstick to ensure the oil level stays between the minimum and maximum marks. Don't underestimate this small action – it ensures your engine's long-term health and prevents the embarrassment of roadside breakdowns.
