This film reduces friction, which minimizes wear and tear and prevents the metal parts from welding together under extreme pressure. The number after the dash describes the oil's viscosity at the engine's normal operating temperature.
What Is Motor Oil Beginners Guide: Understanding the Basics
Synthetic Oil Chemically engineered for superior performance and purity. Standard passenger cars and light-duty vehicles.
Base Oil Type Description Common Use Mineral Oil Refined from crude oil through a purification process. Motor oil is the lifeblood of any internal combustion engine, performing a complex set of duties that keep moving parts functioning smoothly.
What Is Motor Oil Beginners Guide
How Motor Oil Works Inside an Engine The primary role of motor oil is to create a thin film between moving metal components, such as the pistons and cylinder walls. The "W" stands for winter, and the number before it indicates the oil's cold-weather flow.
More About What is motor oil
Looking at What is motor oil from another angle can help expand the discussion and give readers a second clear paragraph under the same section.
More perspective on What is motor oil can make the topic easier to follow by connecting earlier points with a few simple takeaways.
