what about oil

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Most car users neglect their oils, even though the oil is like the  blood of the engine, this is because the oil not only lubricates your engine but it also acts as coolant to the engine, it help absorb the chemical formed during combustion . In this article we will be discussing a lot about oils, how to pick the right oil for your car, how to know a high grade oil and the difference between the types of oils we have.
Oil Category:
The API (America Petroleum Institute) certifies and rate oils according to their quality. Some oils are meant for modern cars while some others for very old ones. While buying oil check for the API donut logo and see what is written on it.
On the logo is written a two letter code.
(SA- SN, its only the letter k and i that are skipped). This codes will help you know the kind of oil you should use for your car.
SA - SH are obsolete now, they are used on vehicles from 1930 - before 2000.
SJ is used on 2001 and older cars.
SL is used on 2004 and older cars.
SM is used on 2010 and older cars.
SN is used on newer cars and can also be used on older cars too. Oils rated SN has higher performance, because it provides high deposite protection for pistons and better slug control.

Oil Grade:
The oil grade simply tells us about the viscosity of the oil. Every car has it own OEM (original equipment manufacturer) specification. The society of Automobile Engineers (SAE)has made it easy for car owners to know the grade of oil to use on their cars without them being mechanical gurus. They invetented a series of code (e.g 5w20,5w30, 0w30 etc) which tells the end user a lot about the oil. The first letter tells us the viscosity at cold start, the letter 'W' depicts winter, and the last number tells us the viscosity at 100 degree Celsius.

Types of oil
There are three types of oil;

  • Mineral oil: It is gotten from crude oil and the least expensive. 
  • Synthetic blend: This oil is a blend of mineral and natural oil.It is often designed for older vehicles and it lasts longer and more expensive than the mineral oil.They are designed for higher performance engine.
  • Full synthetic oil: They are the most expensive oil.They are often used in the industries because of their very high performance.

Different cars require different type of oil.


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