The engine oil is the first thing that the automobile mechanics will change, and it is not hyperbole to say that changing the engine oil is the main reason we need to do the service. The engine oil usually will be sold in 2 types; one is the semi-synthetic, which is expected to be changed within 5,000km interval, and the next one is fully synthetic, where it is expected to be changed within 10,000km interval. They are many types of engine oil brand like Castrol, Liqui Molly, Penzoil, Valvoline, Total, Petronas, Shell and fake engine oil which is harmful to the car engine.

The engine oil will contain some additive that will preserve the engine performance, reduces friction, clean the engine, increased performance, and many others. Some engine oil brands will provide a separate additive to enhance the engine and adding another layer of protection for the engine, which can beneficiary the car engine. Maintaining the engine via engine oil is essential in keeping the car engine operates for a long time.

No matter what brand the engine oil, some numbers are intricately displayed in the engine oil tube or bottle. The number printed in the package will be 10w-30, 0w – 20, 5w-30, and others. This number does not explicitly write on; hence the automobile lovers may be curious about what the number represents. The number in the engine oil represents the viscosity of the engine oil. According to the Oxford dictionary or any online translation, viscosity means the state of being thick, sticky, and semi-fluid inconsistency due to internal friction.

The Society of Automotive Engineering develops the scale of the engine oil, and every engine oil brand needs to print these values of the viscosity in the engine oil packing. Every engine oil, even from some brand, will have a different viscosity number printed on its label. This number is highly crucial in determining what engine oil to be used for a specific car model. What the number mean and represent, and how the number in the engine oil beneficial for the vehicle engine?

In every engine oil, they are a number that is printed as XW-XX. The number that comes before the W indicates the oil flow in the 0 degrees Fahrenheit, while the W is Winter. The number represents the engine oil ability in the cold temperature. The number that comes after the W indicates the engine oil resistance to the high temperature.

For example, the engine oil that had the viscosity of 5W-30 will thicken less than the engine oil that had the 10w- 30 in cold weather. In the high temperature, meanwhile, the engine oil with 5w-30 will thin out faster than 5w – 40; the less the number, the less it will thicken in high temperature.

Currently, the engine oil labeled as 0w is widely used in contemporary car models. The engine oil that is marked as 0w is called multi-viscosity engine oil as it contains special additives. The reason for the present car model using engine oil with 0w viscosity is it had proven to improve the engine performance and improve the environmental condition, which had become a prerequisite with the heavy air pollution.

The viscosity number is usually on the higher side for the semi-synthetic engine oil, which can last up to 5,000km; meanwhile, on the fully synthetic engine oil, the number can be lower as it can last up to 10,000km. The engine oil that had low viscosity will be sold at higher prices. This viscosity, when translated to the actual performance, will be beneficial to car performance and will keep the engine’s ability to handle the cold and hot temperature intact.

For automobile lovers who want to know on what type of engine oil viscosity that needed to be poured into their car engine, they can always refer to their manual or speak the customer service of the car model. They also can check with their official service center to know the information. Why is this information crucial? If an incorrect viscosity of engine oil had been poured into the engine, it would damage the engine’s ability to withstand cold and hot temperatures and, at some time, will downgrade the car performance.

Failure to adhere to these small details will bring colossal damage to the car; overall, leading to a bank-breaking account to be paid for the automobile to fix this damage. Like the engine oil, the viscosity also is an important aspect that needs to be considered when automobile lovers are choosing the engine oil.


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