The engine oil viscosity rating for your vehicle is typically listed in the owner’s manual. It will look like 5W-30 or possibly 15W-40 depending on the vehicle. However, viscosity ratings are also for the climate and outside weather. For colder temperatures, it’s best to use a lower viscosity rating, as it will flow better. A thinner, lower viscosity rating is 5W-30.
Lower viscous motor oils flow better in lower temperatures. Higher viscous motor oils are better for hotter climates and heavier loads. You wouldn’t want to use the wrong motor oil for your engine as it could lower your fuel economy and progressively wear down your engine. In addition, if you constantly find your engine unable to start in lower temperatures, you may need to check if you’re using the right viscosity rating in your motor oil.
To get the best motor oil, ask the experts at Ron Ward Chevrolet. in Herrin, IL about your vehicle and what would be best for your engine.