What are the consequences of filling the car's engine oil over the upper limit? What should I do if I fill the car's engine oil too much?

Engine oil is very important for the normal operation of the engine. Car lovers know that engine oil should be changed regularly, which is good for the engine. When adding engine oil to a car, pay attention to the scale line, not too high or too low. So what are the consequences of adding engine oil to a car beyond the upper limit? What should be done?

What are the consequences of filling the car oil over the upper limit?

The oil level in a car engine must not exceed the upper limit. Exceeding the upper limit has the following hazards. First, the engine's resistance will increase, which will increase fuel consumption and worsen acceleration. Second, too much oil will cause the engine to burn oil, which will increase carbon deposits in the engine and damage the three-way catalytic converter over time. The repair cost will be very expensive, so don't add too much oil.

What to do if you add too much engine oil

Drain excess oil as soon as possible

We need to find a nearby repair shop as soon as possible to help us drain the excess oil.

Moreover, we must pay attention to maintaining a low speed during driving and not let the engine speed be too high, because if the engine speed is too high, it may inhale more oil into our engine exhaust system and intake system.

Burn off excess oil at high rpm

After releasing the excess oil, drive the car at high speed more often and use the high engine speed to burn the remaining oil out of the engine.

Because when we add too much oil, it will be sucked into the intake manifold by the intake system when the engine is running. At this time, there will be a lot of residual oil in the intake manifold. We want to remove it, but it is impossible to remove the intake manifold to remove it, so we can burn the oil in the intake pipe when the engine is running at high speed or at high speed.

What to do if the car oil increases

The cylinder block is completely sealed, and nothing outside can get in. The oil will not increase for no reason. Once the oil is found to increase, it means that something else has penetrated into the cylinder. The most likely possibility is that the cooling system pipeline or the cylinder gasket is broken by high pressure, causing a leak, causing the coolant to enter the cylinder block.

Therefore, once you find that the engine oil has increased, you must immediately check whether the coolant has decreased and report it immediately. If you continue to drive, the water temperature will rise, and the dilution of the engine oil may cause more serious faults such as cylinder scuffing and tile burning!