What are the signs of oil deterioration?
2 Answers
The signs of oil deterioration include: 1. Decreased viscosity; 2. Severe water-like thinning; 3. Presence of metal shavings and gel-like substances. The causes of oil deterioration are: 1. Filter malfunction; 2. Water entering the engine; 3. Poor crankcase ventilation and inadequate cooling; 4. Cylinder wear or piston ring damage; 5. Prolonged oil usage. Methods to address oil deterioration include: 1. Timely oil changes; 2. Regular inspection of oil condition via the dipstick. Engine oil, also known as motor lubricant, serves to lubricate and reduce friction, assist in cooling, seal against leaks, prevent rust and corrosion, and provide shock absorption for the engine.
The symptoms of deteriorated engine oil are quite obvious. As a seasoned driver with over 20 years of experience, I often notice the oil turning pitch black, unlike the golden and clear appearance of fresh oil. When pulling out the dipstick, the oil may be as thick as syrup or as thin as water, with poor fluidity. It emits a burnt or pungent chemical smell, which is quite unpleasant. The engine noise increases, sometimes producing knocking sounds, and acceleration becomes sluggish with noticeable power loss. There might also be sediment particles or metal shavings in the oil, which is concerning. At high temperatures, oil pressure fluctuates significantly, and it gets worse if the oil warning light comes on. I always recommend checking the dipstick when refueling and replacing the oil immediately if anything seems off to avoid major engine issues that can be costly and troublesome to repair. Regular maintenance is the way to go for peace of mind.
