What do Motor Oil Viscosity Ratings Mean?

Motor oil is to a car as blood is to a living thing. Your car needs motor oil to run smoothly because without regularly changing your oil, it can get sludgy and fill up with metals, which makes it harder for the car to run. The oil's ability to flow through the car smoothly is known as viscosity.

An oil that has a high level of viscosity, as indicated by the numbers before and after the W on a bottle of motor oil, is a slow-flowing but thin oil. This can be a good thing in high temperatures. However, cold weather makes oil thicker but faster, which makes it easier to cover ice-cold car parts.

Would you like to learn more about why your car needs motor oil and why its viscosity rating matters? Come down to Volvo Cars Edison in Edison, NJ to talk it over with a member of our team.

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