What Causes the Increase in Engine Oil in Dongfeng Nissan X-Trail?

1 Answers
McGabrielle
07/30/25 5:15am
Engine oil increase occurs because the engine injects a large amount of gasoline during startup. Sometimes, due to excessive injection and incomplete combustion, the high pressure on the cylinder walls forces gasoline into the engine oil. Normally, gasoline evaporates once the engine reaches operating temperature. However, frequent cold starts and cold weather in northern regions can prevent the engine oil from warming up sufficiently, making it difficult for the gasoline to evaporate, leading to a continuous increase in engine oil. Here is a related introduction to engine oil increase: 1. Hazards: When the engine oil increases to a certain extent and exceeds the upper limit on the dipstick, some oil may enter the combustion chamber and participate in combustion, resulting in oil burning. Oil burning can have serious consequences, such as failure of the catalytic converter, rapid damage to the vehicle's oxygen sensors, increased carbon deposits in the combustion chamber, unstable idling, reduced acceleration power, increased fuel consumption, and excessive exhaust emissions. 2. Solutions: In low-temperature environments, perform actions like warming up the engine or driving on highways to allow the engine to reach sufficient temperature conditions, enabling the gasoline or moisture mixed into the oil to evaporate. If there is a slight increase in engine oil, try raising the engine temperature to resolve the issue. However, if the oil increase phenomenon does not improve, it is best to visit a 4S shop or a repair shop for a thorough professional inspection to identify the source of the fault, solve the oil increase problem, and ensure the engine oil can better protect the engine, creating a favorable working environment for engine operation.
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