The LUCAS UPPER CYL 10020 is a premium upper cylinder lubricant designed for optimal engine performance. This 24 oz. bottle is perfect for enhancing fuel efficiency and reducing engine wear. It is compatible with all gasoline and diesel engines, ensuring smooth operation and longevity. The formulation includes high-quality additives that clean and protect critical engine components, making it an essential product for vehicle maintenance. Ideal for both professional mechanics and DIY enthusiasts, this lubricant meets industry standards for performance and reliability.