The duration of its operation directly depends on the quality of the oil poured into the systems of the car. However, when purchasing a product even from a well-known brand, you need to know the technical characteristics of the oil.
Varieties of automotive oils
When choosing a suitable lubricant for the VAZ 2109, you should, first of all, be guided by the recommendations of the manufacturer. There are three main types of lubricant on the market today. The first type is mineral oil, which is a budget option. A similar material is obtained during the distillation of oil and its subsequent refining. Mineralka is used in the overwhelming majority of cases on old cars (or with high mileage, more than 100,000 km), in worn out engines.
"Synthetics" owes its appearance to the chemical synthesis of molecular compounds. This oil has a high evaporating temperature. This quality allows you to maintain all the operating parameters of the lubricant at high engine loads.
Among the oils, there is also an intermediate option - semi-synthetics. These are oils with synthetic and mineral constituents. When making a choice in favor of a particular type of oil, it must be borne in mind that synthetics and semi-synthetics contain various active additives that can destroy some engine elements on old cars. This is due to the fact that previously they used a material that has a low resistance to high chemical activity, which modern oils have.
How to choose a lubricant for a VAZ 2109
After the type of lubricant has been selected, it is necessary to determine the viscosity of the oil, the value of which can be understood from the alphanumeric code on the package. For example, 10W-40. The first figure shows the viscosity of the material at negative temperatures. The smaller it is, the lower the viscosity, which means that the engine will start easier in cold weather. The second number shows the viscosity under high temperature conditions. The higher the number, the higher the viscosity as the engine load increases. If the oil is too liquid, then it will not be able to form a protective film on the surfaces of the motor parts, which will lead to its rapid wear.
If in your region the temperature does not drop below minus 10 ° C, then it makes no sense to buy a brand of oil with "0" in front (for example 0W-50), for example, 10W-40 will do. That is, for winter operation, it is advisable to use oil, in the designation of which the first digit is 5-10. A more fluid lubricant with the first digit "0" will be needed if you have a harsh climate and in winter it is constantly minus 30 ° C and below.
The second equally important point to consider when buying oil is driving style. If you prefer to drive fast and hard, i.e. with high engine loads, it is preferable to buy oil that has a high viscosity at high temperatures: 10W-50, 5W-50 and even 0W-50. If the driving style is moderate, then you can stop at the brand, where the second number is 40.
