Can 0w40 be used in summer?
2 Answers
0w40 can be used in summer. The number after w is 40, which refers to the oil viscosity at 100 degrees, indicating that 0w40 oil has a higher viscosity at high temperatures, providing good protection and making it suitable for summer use. Engine oil is the lifeblood of the engine, serving functions such as lubrication and wear reduction, cooling, cleaning, sealing and leak prevention, rust and corrosion prevention, and shock absorption. Engine oil can be classified into fully synthetic oil, semi-synthetic oil, and mineral oil. Synthetic oil is artificially formulated through chemical processes, while mineral oil is extracted from minerals. Synthetic oil performs better than mineral oil. Among synthetic oils, fully synthetic oil is superior to semi-synthetic oil, offering better cleanliness and smoothness, as well as a longer replacement interval.
As a seasoned car owner with years of driving experience, I can confidently say that 0W-40 oil is perfectly suitable for summer use. This is a multi-grade oil with excellent winter performance (the 'W' stands for winter) and maintains good high-temperature stability in summer (the '40' indicates viscosity), making it a year-round solution. When temperatures rise in summer and engines tend to overheat, 0W-40 maintains stable viscosity, providing reliable lubrication and protection for engine components while also helping to improve fuel efficiency. I've personally used it in my car during summer months, even on long trips, without any issues. However, it's important to check your vehicle's manual for the recommended oil type first – some newer cars have higher requirements, and using the wrong oil could affect engine longevity. Since oil tends to deplete faster in summer, regularly checking oil levels and color is a good practice to ensure driving safety.
