Can your Chevy Silverado use 10w40 motor oil in the summer?

Whether your Chevy Silverado can use 10W-40 motor oil in the summer depends on the specific year and model of your truck, and what the owner's manual recommends.

While 10W-40 is a common and acceptable oil for many vehicles, always consult your owner's manual. It will specify the recommended viscosity and oil type for your engine. Using the wrong oil can damage your engine. The manual will tell you the weight and type of oil your truck needs, and if 10W-40 is within the acceptable range.