The right choice of oil viscosity. Seasonal and all-season oils (VW Golf 1)

The oil specification table indicates at what temperatures what viscosity of oil is required for engines. When looking at the table, you can see that Volkswagen allows the use of inexpensive seasonal oil in a certain way. This will create an opportunity for savings if you do not load the car for a long time to the upper limit of power. Seasonal oils are no worse than all-season oils, but they can only be intended for small temperature ranges.

Therefore, in the cold season, it is better to use all-season oil, which, on the one hand, ensures reliable engine starting in frost, and on the other hand, guarantees good lubrication when driving on the highway at full speed. In the warm season, it is enough to use seasonal oil.

Special oils

Special oils or oils that promote fuel economy are more expensive than regular all-season oils. Special lubricants, very fluid when cold, during the engine warm-up phase and over short distances, reduce internal friction in the engine. It can be recognized that the real fuel economy is about 3%.

Synthetic oils

The most expensive lubricants for engines are synthetic oils. Conventional mineral oil consists of hydrocarbon compounds of varying structure and length. Synthetic oils contain synthetic chemical compounds of carbon, hydrogen and oxygen. Only those molecules are selected that can optimally lubricate the engine. In practice, this means that synthetic oils (as opposed to mineral) age much more slowly, evaporate less quickly and are highly stable, meaning they retain their original viscosity grade for a long time. Such oils have optimal lubricating properties and ensure special cleanliness inside the engine.



The article is posted on this website: www.vwmanual.ru

Note. Special and synthetic engine oils must comply with API CF. This specification is indicated on the oil can. This type of lubricating oil can be used at external temperatures between -20 and +30 degrees Celsius. When replacing oil with special or synthetic oil, in most cases its consumption is higher.