Why Does Engine Oil Increase?
1 Answers
There are three reasons for the increase in engine oil: mixing of gasoline or water into the oil, engine component mechanisms, and temperature conditions. Below is an introduction to the causes of engine oil increase: 1. Mixing of gasoline or water into the oil: During vehicle operation, poor sealing of pistons or cylinders allows mixed gas to enter the crankcase. When the temperature drops, the gas condenses into liquid and flows back into the oil pan, increasing the oil level. At this time, water mixes into the oil. If fuel does not fully combust in the cylinders, it flows back into the oil pan, increasing the oil volume and diluting the oil, reducing its performance and failing to protect the engine. 2. Engine component mechanisms: The increase in oil volume is related to engine component mechanisms, such as insufficient cylinder pressure, poor cylinder sealing leading to reduced engine power and difficulty starting, or faulty fuel injectors causing dripping or excessive fuel injection. These two situations require monitoring by a mechanic to confirm the cause and perform repairs. 3. Temperature conditions: During cold starts, a richer fuel mixture is required, so the fuel injector sprays more gasoline. This results in excess gasoline flowing back into the oil pan. Generally, the main reason for oil increase is excessive fuel injection.
