What's with Volkswagen burning engine oil?

First of all, check the causes of burning engine oil related accessories and eliminate related accessories problems.

2. By removing relevant accessories in the first step, it is determined that the engine oil burning problem is caused by the piston ring sticking.

Determining the piston ring is the reverse derivation of determining the cause of the piston ring. Therefore, it is very simple to check one of the external accessories. Secondly, it can be determined that it is a piston ring, so we will not detour.

First of all, you have to confirm the reason for burning oil. There are two main reasons for burning engine oil. First, there are problems with accessories, waste gas valve, valve oil seal, cylinder pulling and insufficient cylinder pressure. Second, the oil circuit is not cleaned for a long time, the antifreeze is not replaced in time, the service life of the oil is too long, and the piston ring is stuck. The common situation is that the piston ring is stuck.

The piston ring stuck is the main reason.

The piston ring is stuck like this, and the order of piston ring clamping is like this. First, the oil circuit is often unclean, and more and more carbon is deposited in the cylinder. With the operation of the piston, it began to gradually precipitate on the piston ring. Coupled with the high temperature caused by poor combustion, the oil film was destroyed, and the lower part of the piston ring was also stuck by crusting oil, so the piston ring was completely stuck. Therefore, solving the problem from the oil circuit is the fundamental way. However, it is not used casually. 99.9% of the oil path cleaners have no function of releasing and cleaning piston rings, let alone using peas and the like, and have not separately cleaned the carbon deposits in the cylinders. Using an effective release agent will remove all carbon deposits in the oil circuit and release the piston ring. If you want to use it, you can use PNF cleaner to release the piston ring.

Classification of engine oil combustion severity

Within 2000, one liter is heavy engine oil, 2000-4000 is medium engine oil and 4000-5000 is light engine oil. According to the national standard GB/T 19055-2003, the consumption ratio of engine oil at rated speed and full load shall not exceed 0.3%, that is, the lubricating oil is normally lost every 5000 km1-1.5l..

Solution of engine oil combustion

In the habitual thinking of riders, it is always believed that burning engine oil requires overhaul, which not only bears high maintenance costs, but also bears unpredictable risks and depreciation losses caused by vehicle overhaul. Destroy the tightness and accuracy of the engine. Moreover, it is possible to burn oil after tens of thousands of kilometers, so overhauling the engine is unsustainable.

Now the demolition-free technology is very mature and gradually accepted by the majority of car owners. In particular, the fourth-generation PNF nondestructive repair products completely get rid of the technical shackles of operating in the garage. Without removing a screw, the owner can operate it by himself, and the effect of repairing and releasing the piston ring during driving is remarkable.

How do you know if burning engine oil is serious or not?