XTeer Top Prime 0W40 4L Synthetic is a high-performance, fully synthetic engine oil formulated for advanced gasoline and diesel engines. With its 0W40 viscosity, it provides excellent cold-start protection and ensures optimal performance in both high and low-temperature conditions. This oil reduces engine wear, enhances fuel efficiency, and promotes long engine life, making it ideal for high-performance vehicles and challenging driving environments. The 4-liter container is perfect for larger oil changes, offering reliable protection and extended service intervals for superior engine protection and performance.