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What engine oil viscosity is suitable for our car? | ТСАКИ ООД

What engine oil viscosity is suitable for our car?

It is important to choose a good engine oil for the normal functioning of the car engine. Every car enthusiast understands this. The difficulty is that the choice of lubricants is so great that it is easy to get confused in this variety. That's why Tsaki will help you choose the right oil for your vehicle, with the right viscosity for your vehicle.

 

How to choose the right engine oil by viscosity


One of the key parameters of lubricants is viscosity. This characteristic determines how strong the oil film is on the lubricated surface. Thick oil is better retained in friction pairs (cylinder-piston, connecting rod-crankshaft, etc.), effectively preventing wear on engine components. In addition to lubrication, this fluid performs the function of a seal. There is always a microscopic wall between the cylinder and piston ring. An oil film fills it. Oil that is too thin cannot form a layer of sufficient thickness to ensure complete combustion chamber tightness. As a result, hot gases penetrate into the crankcase, which has an extremely negative effect on the "health" of the engine. Excessive viscosity in freezing weather causes the engine to be difficult to start and the engine is stressed.

 

 

SAE classification



To avoid guessing which engine oil to choose by viscosity, you simply need to check the vehicle manufacturer's recommendations. The developers prescribe the permissible oil parameters in the vehicle's technical documentation. For example, it may state that it is recommended to fill SAE 5W-30 or 0W-40 oil. Let's find out what it is.

SAE is a standard that defines the viscosity of the oil. Winter oils are designated from 0W to 25W. Summer only has a numerical index of 20 to 60. If two values are listed in the marking, the oil is all-weather. The winter viscosity indicates at what temperature the lubricant will circulate freely through the system. For 0W the minimum temperature is -45 degrees and 25W is suitable down to -15°C. With the summer indices everything is much simpler. The number on the mark indicates which temperature overboard is optimal for the operation of that product. For example, if you need to drive at +20 ° C, you need a lubricant with an index of 20, and in 40-degree heat you will need to pour oil marked with the number 40.

The viscosity of the oil should meet the car manufacturer's requirements, regardless of age, mileage, driving style, budget and the opinion of the service staff.

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