The BMW X1 is added with fake oil (inferior oil), the thick sludge at the valve cover_vehicles, vehicles

The BMW X1 is added with fake oil (inferior oil), the thick sludge at the valve cover

September 10, 2024

The owner of the BMW X1 is a lady. When the vehicle was inspected at just 7W kilometers, the exhaust emissions were not up to standard. It was caused by burning engine oil, and the oil leakage in the engine compartment was more serious! A large pool of oil leaked from the bottom guard plate at the valve cover, the eccentric shaft, and the intake and exhaust solenoid valve.

When you see this, are you trying to say, replacing the valve oil seal without removing the cylinder again?
This is really not the case today, don’t you believe it? You keep looking down.

We tear it apart.

Remove the valve cover.

Here, look carefully.
Yes, it is covered with a layer of sludge, which is abnormal. Engine oil, that is, engine lubricating oil, can lubricate and reduce friction, assist in cooling, seal and leak prevention, prevent rust and corrosion, shock absorption and buffer on the engine. It is known as the “blood” of cars.
If the right oil is added, the engine can always maintain good working condition and ensure stable combustion efficiency;
If you add the wrong oil, it may affect engine performance or directly cause engine failure or damage!

There can only be one explanation for this state, which is caused by the addition of fake engine oil (inferior engine oil). This is not serious. I have seen more serious vehicles with engines completely covered in a layer of black (brown) sludge.

It will not be visible for a short time after adding inferior oil, but it will slowly affect fuel consumption, increase noise, make cold starting difficult, and severe poor lubrication will cause the engine to scratch.

The harm of fake oil is very great. The most direct thing is that the lubrication effect is not up to standard, which leads to increased wear of various bearings and moving parts of the engine, which greatly reduces the service life of the engine. Indirectly, the engine temperature will be too high, which will affect the operation of many precision electronic equipment.

Some friends will say, can I only add well-known oil?
Then in order to save tens of yuan, I bought motor oil from a certain treasure, a certain forum, a certain bar, or even unknown offline vendors and added it to my car.
Little did you know that these places are a haven for fake goods. Only when the engine fails will you realize that you have bought a fake product!
And I don’t know what you want to say about inferior motor oil?

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The BMW X1 is added with fake oil (inferior oil), the thick sludge at the valve cover