Fully-synthetic ester formula for passenger cars, light trucks, performance vehicles, and marine applications. Excellent wear protection and friction reduction across a wide range of operating conditions. High detergency allows extended drain intervals and provides increased cleanliness: improved fuel economy and ring seal for more power. Superior high-temperature stability and oxidation resistance increase lubrication of hot metal compared to other synthetics. High natural viscosity index provides thicker oil film in bearings and cams. Less evaporation for improved efficiency and ring seal. All products are entirely compatible with other conventional and synthetic motor oils. SINCE 1979 In 1979, Red Line Synthetic Oil began creating lubricants for the racing industry. Today, we manufacture more than 100 quality products, including motor oils, gear oils, assembly lubes, fuel additives and our popular WaterWetter cooling additive for the automotive, motorcycle, marine and industrial markets. TECHNOLOGY Using cutting edge technology, Red Line responds to the technical challenges of today's performance industry. We are enthusiasts that stay on top of each market niche, ensuring product recommendations that result in serious performance gains. We use this knowledge of racing to create high-performance products for track cars and street vehicles. Red Line products perform and protect better than any on the market. No compromises.