Engine oil will reduce engine performance.
1. increase fuel consumption
When the oil in the engine cylinder is too full, it will produce more unnecessary resistance to the crankshaft rotation, and then affect the power output, thereby increasing fuel consumption.
2. power down
The amount of oil entering the combustion chamber increases greatly, which increases the carbon deposition in the combustion chamber, increases the motion resistance of the piston, and decreases the engine power.
3. environmental protection is not up to standard.
The tail gas emission will deteriorate, seriously affecting the life of the three-way catalytic converter, and may even directly damage the three-way catalytic converter.
4. oil leakage
The oil seal life is reduced, which may cause the engine to leak oil.
Then how much is it appropriate for each maintenance?
Generally, it can be maintained between the minimum scale and the highest scale of the fuel level.