Engine oil viscosity can be confusing. How do you know which one to pick? It’s best to start with your vehicle’s owner manual. This should tell you what’s best for your engine. However, it’s also good to know that motor oil viscosity is measured a certain way based on the temperature and load capacity of your engine.
In each motor grade, you’ll notice there is a number followed by W-, and then another number. For example, 5W-30 is a thinner oil that works better in lower temperatures because it doesn’t thicken as much in cold weather. However, a 5W-40 grade is a thicker, more viscous oil that’s better for high temperatures.
There are also 15W-40 and 20W-50 oils that are made for extremely hot climates or high loads. To know which one is best for your vehicle, you can always ask the experts at Jaguar Fort Wayne located in Fort Wayne, IN. We can help you with any questions related to your engine and motor oil.