Can You Mix 5W30 and 5W20? A Comprehensive Guide
Engine oil plays a critical role in ensuring the smooth operation of your vehicle. When maintaining your car, you might face situations where you need to top off or change the oil, but what happens if the oils available are of different grades, such as 5W30 and 5W20? This article answers the question: Can you mix 5W30 and 5W20? Understanding Engine Oil Grades The numbers in oil grades (e.g., 5W30, 5W20) represent their viscosity under different temperatures: The first number (5W): Indicates how the oil flows in cold weather. The "W" stands for winter. The second number (30 or 20): Represents the oil’s thickness at high operating temperatures. 5W30 is slightly thicker than 5W20 at higher temperatures, which provides more protection under certain conditions. However, thinner oil like 5W20 is designed to reduce friction and improve fuel efficiency. Can You Mix 5W30 and 5W20? The short answer is yes , you can mix 5W30 and 5W20 oils, but there are important considerations: 1. Co...