Engine Oil Concepts/Explanations

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Many people think that oil with high viscosity (heavy) is better than lightly viscous oil

First, you must know the characteristics and types of oils and their role in engines.

Oils are of two types: synthetic and mineral.

Synthetic oils are manufactured and installed in chemical laboratories, and they are among the best and finest oils, and they are divided into two types:

Semi-synthetic oils, such as 10w40
100% synthetic, such as 0w30, 5w30, or 5w40

Mineral oils are sourced from crude oil, such as 15w40 or 20w50, which is a Lower quality oil

As for the role of oil, it is limited to lubricating and cooling the internal parts of the engine and reducing the process of friction and wear.

What is the meaning of 5w40

5 is the viscosity of the oil in cold weather when the engine started running
The greater the decrease in 0w, 5w, 10w, 15w, 20w, the better it is when the engine is running at minimum temperatures, as the oil reduces to its viscosity whenever the number decreases. Engine, studies say that the process of engine wear takes place in the first minutes after starting, and that is why light oils must be used to maintain the engine.
40 The viscosity of the oil at a high temperature, that is, after the engine is running
That is, the higher the number is 30, 40, 50, 60, the better it is to keep the engine at high temperatures, i.e. 60 is better than 40

Oils have a shelf life and change from one oil to another

5w30 25.000km
5w40. 20.000km
10w40 15.000km
15w40. 7500km
20w50. 5000km

Changing the filter is with every oil emptying process or a maximum of 15000 km.

So, light oil is better than heavy, as its characteristics allow it to move inside the engine very quickly to protect the engine when it is running in the morning, and you can take off without heating the engine because all parts of the engine are protected, but heavy oil takes a longer period and the engine must be heated until the oil becomes lighter and moves to all parts the engine.

You must respect the manufacturer and use the oil he recommends.

Find your car https://cardoctorlb.com/ then go to Filters -> Engine Oil Filter