The main reasons for the formation of sediment:
- the intervals between oil changes are so long that the oil is almost completely exhausted. Therefore, carefully follow the instructions for changing the oil;
- some oil manufacturers use additional additives that prevent sludge formation and wear. A Mercedes branded service station can provide a list of oils recommended for use - contact the branded service;
- changing the oil at a company service will be expensive, primarily because only expensive grades of oils are used there, but they meet the latest Mercedes regulations;
- when changing at a gas station, you can choose oil from a wider list and cheaper. The cost of the replacement work is included in the price of the oil.
Note. Every time you change the oil, you need to change the oil filter, which helps to increase the life of the engine! See the corresponding description later in this section.