Choosing Your Motor Oil Wisely

Motor oil contributes to a longer vehicle life as it protects your engine from premature wear, but how do you choose from a vast range of oils sold in the market? To make an informed decision, you need to study the following:

Oil Numbers

Two numbers indicate a multigrade lubricant. This means that there’s little viscosity differences under high and low temperatures and that it’s capable of sustaining smooth engine performance. The first number shows the oil’s viscosity in lower temperatures, and the “W” that follows indicates winter. The second number shows oil viscosity under higher temperatures.

Oil Viscosity

Oil is graded and classified by its viscosity. It measures the fluid’s thickness and determines its ability to flow. If it’s too thick when cold, it resists flow. If it’s too thin in high temperature, it can’t protect the engine well. Generally, thicker oil means better seal and lubrication film between moving parts. You can determine the oil’s viscosity rate by the grade number, wherein lower means thinner. To evaluate which viscosity is best for your vehicle, check your manufacturer’s guideline and take note of weather conditions.

Additives

Heat along with combustion byproducts, rust, corrosion, moisture, wear particles, and oxygen produce sludge in the engine. Additives improve your oil performance by keeping it clean and cool. Oil is able to work longer and harder as additives give extra protection while it cleans your engine. Types of additives include antioxidants, anti-rusts, friction modifiers, anti-wear, dispersants, detergents, and foam inhibitors.

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