What kind of car oil?
Manufacturers generally recommend the use of synthetic and semi-synthetic oils for new vehicles or with new engines. However, in older cars with low-power units, it is better to use mineral oils.
Car owners often wonder what oil is best for their car engine. In the instructions, you can usually find the word: "The manufacturer recommends using the company's oil ..." - and a specific brand is mentioned here. Does this mean that the car owner needs to use only one brand of oil?
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The information in the car owner's manual is an advertisement for this company and not a real requirement. Most car manufacturers have contracts with oil companies, and information indicating the use of a particular brand of oil is an obligation of the car manufacturer to the oil manufacturer. Of course, they both benefit financially.
For the car owner, the most important information is the classification of the quality and viscosity of the oil used in the car's owner's manual. Of course, the replaced oil may have a better viscosity than stated in the manual, but it cannot be the other way around. However, it does not matter which brand the oil will be, provided that it is a branded brand and the oil has been tested for use in cars.
Manufacturers generally recommend the use of synthetic and semi-synthetic oils for new vehicles or with new engines. Especially for them, the designs of drive units have been developed. On the other hand, in older cars with low power units, it is better to use mineral oils, especially if the engine previously had mineral oil.
Why is it better to use mineral oil for used cars? Older engines have carbon deposits, especially on the edges, which are washed out and recycled when synthetic oil is used. They can get on the surfaces of pistons and bushings, flatten the cylinder and damage or scratch them.
When to change the oil? According to the operating instructions, that is, upon reaching a certain mileage. For cars produced today, this is 10, 15, 20 and even 30 thousand. km or in a year, whichever comes first.
