SAE 0W-20 is a type of motor oil that meets the standards set by the Society of Automotive Engineers (SAE). The "0W" indicates that the oil has a low viscosity at cold temperatures, allowing for easier engine starts in cold weather. The "20" signifies its viscosity at higher temperatures, providing adequate protection and lubrication during engine operation. This oil is commonly used in modern vehicles, particularly those with fuel-efficient engines. Its formulation helps improve fuel economy while ensuring that engine components remain well-lubricated and protected from wear. Using the correct oil type is essential for optimal engine performance and longevity.