What Happens If Engine Oil Is Not Changed for a Long Time?

1 Answers
VonOlivia
07/24/25 5:21pm
The effects of not changing engine oil for a long time are: 1. The oil becomes ineffective and deteriorates, failing to provide lubrication and protection, which increases wear on mechanical components; 2. The oil becomes watery, losing its sealing function and leading to gas leakage; 3. Reduced cooling effect; 4. Deposited impurities corrode internal components; 5. Increased sludge formation makes it difficult for the oil pump to maintain pressure, resulting in engine failure. The functions of engine oil are: 1. To cushion the impact load on pistons, piston rings, connecting rods, and crankshaft bearings; 2. To form a sealing ring between the piston rings and pistons, reducing gas leakage and preventing external contaminants from entering.
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