Changing engine oil too often - 5 harmful effects that drivers don't know

1. Create pressure on machine parts

There are oil seals at the beginning and end of the crankshaft to prevent oil leakage. If too much oil is poured in, it will create high pressure in the engine. As a result, the oil in the engine will exert force on the seals and over time, it will lead to oil leakage. More dangerously, if this amount of oil is not detected in time, it can overflow the flywheel, causing clutch slippage.

2. Can bend or break connecting rod

Not only water entering the engine can cause the connecting rod to break or bend, but the excessive resistance from excess oil can also cause the crankshaft and connecting rod to endure more friction when in contact with oil, causing them to bend and, more seriously, can cause the engine to break.

3. Air bubbles appear in the oil

When too much oil is poured, there is no more room for the excess oil to circulate. When the engine is running, the shaft rotates, the excess oil will mix with air and foam will appear. Foamy oil cannot lubricate the machine parts well, over time leading to overheating and gradually damaging the engine parts.

4. Engine gasket tear

Engine gaskets have the function of sealing the gaps between parts. When too much oil is added, exceeding the tolerance of the engine, it will create pressure that tears and cracks the gaskets, causing oil leakage. When these gaskets are cracked or loose, it will cause a lack of oil, forcing the oil to be added continuously.

5. Causes black smoke

Too much engine oil will overflow into the combustion chamber and burn with the gasoline + air mixture, causing black smoke when discharging exhaust gas. If not fixed soon, it will clog the catalytic converter, and will break the turbocharger for vehicles using a turbocharger system.