Pennzoil multi-vehicle ATF automatic transmission fluid is a special blend of high-quality base stocks. It meets the performance requirements of a broad range of automatic transmission applications. Formulated to provide protection that meets or exceeds industry standards for quality, it is also designed for stability to prevent deposit formation and keep system components clean. The specially-balanced additive system guards against shudder, eliminates the need to stock ATF supplements and ensures a smooth, high performance driving experience. Carefully-balanced friction modifiers allow friction retention for long-life performance, while maintaining the smooth lockups required by a wide variety of vehicles. Enhanced oxidation, thermal stability and corrosion resistance help to sustain transmission cleanliness, oil life and year-round protection of the transmission components.