Regal 2.4 has water in the intake pipe.

There is usually a water plug in the engine, which should be near the timing chain. Sometimes if something goes wrong with that thing, it will also cause oil and water to mix together. You can have a look.

A small amount of water enters the engine, and after entering the cylinder, it mixes with the engine oil, and the engine oil becomes bad. Oil containing moisture will increase the wear and tear of engine parts, which may increase the noise and vibration of the engine when the vehicle is driving in the future.

Start the engine again for a few seconds and then turn it off again, and then it can't be started many times. This is the most serious situation. Because water can't be compressed, the engine is still running at high speed after water enters the cylinder. When doing work, water can't be compressed, which directly leads to the bending of the valve and connecting rod, the piston sticking, the serious wear of the middle cylinder and the bending of the crankshaft. It is recommended to change the oil as soon as possible.