What Happens When a Vehicle Lacks Engine Oil?
2 Answers
The effects of insufficient engine oil in a vehicle are: 1. It can cause cylinder scoring; 2. It leads to poor lubrication, resulting in component wear, and excessive wear can increase operational resistance. The functions of engine oil include lubricating and reducing friction, assisting in cooling, sealing against leaks, preventing rust and corrosion, and providing shock absorption. Methods to determine when an engine needs an oil change are: 1. Check the oil quality—if it appears black and smells acidic, it needs replacement; 2. Use your finger to check if the oil still has viscosity; 3. Difficulty in shifting gears during a cold start. The method to check the oil dipstick is: 1. Turn off the engine and wait for 10 minutes, then open the hood and locate the oil dipstick; 2. Pull out the dipstick; 3. Wipe the oil off the dipstick; 4. Reinsert it into its original position; 5. Pull it out again and tilt it to view the oil level.
I remember last time I neglected to check the engine oil and drove on the highway, the engine started rattling loudly, which was really nerve-wracking. Upon inspection, I found the oil level was almost empty—if I had continued driving, the consequences would have been unthinkable. Without the lubrication and cooling protection of engine oil, parts would directly rub against each other, causing temperatures to skyrocket instantly. At best, this could lead to piston scoring or crankshaft wear; at worst, the entire engine could be reduced to a pile of scrap metal. Now, I’ve developed the habit of simply checking the oil level with the dipstick every month to ensure it stays between the high and low marks. Long-term low oil levels can also increase carbon buildup, cause fuel consumption to spike, make the engine noisier, or even lead to sudden stalling on the road, compromising safe driving. Replacing an engine can cost thousands or even tens of thousands—it’s not worth the risk. Prevention is the wisest approach. Taking a few minutes to check the oil level every time you refuel can save you from major trouble.
