When it comes to engine oils, 10W30 and 10W40 are very similar. While they are both viscous at cold temperatures, they behave differently at normal operating temperatures. The best way to determine which is better for your vehicle is to check your owner’s manual. Then, follow the manufacturer’s guidelines to select the best oil for your vehicle.
Which is Better 10W30 Or 10W40?
While both types have many benefits, choosing between 10W30 and 10W40 will depend on the age of your vehicle and its operating conditions. For modern vehicles, a thinner oil will be more suitable. High-viscosity oils tend to wear down engine components, and they also stress the oil pump.
If you’re looking for an economical solution, 10W30 may be a good option. It’s easier to find and less expensive than 10W40 High Mileage oils. However, this type of oil is not recommended for extremely hot climates, as it doesn’t perform as well under high temperatures. If you live in a hot climate, 10W40 is a better choice, as it protects engine parts from excessive wear and tears.
10W40 oil is better for most cars. Although both oils have similar cold weather ratings, 10W30 has lower viscosity at operating temperatures. Thinner oil is able to move engine parts easily, which means you’ll use less fuel.