Red Line Oil D4 Synthetic Automatic Transmission Fluid

Red Line Oil D4 Synthetic Automatic Transmission Fluid (D4 ATF) is a full-synthetic transmission fluid. It is Red Line's most versatile ATF. It is made for use where Dexron III, Dexron II, Mercon and Mercon V fluids are recommended. It works in automatic transmissions, manual transmissions, transaxles and power steering systems.

Key Features:

• Full-synthetic formulation: Better thermal stability and lower volatility than conventional petroleum ATF.
• High-temperature protection: Lets the transmission run hot without varnishing valves and clutches.
• Cold-weather performance: Low viscosity at low temperatures for quicker shifting in cold weather.
• Shear stability: Holds its viscosity under load, in line with Mercon V shear-stability requirements.
• Smooth, consistent shifts: Balanced friction characteristics support extended drain intervals.
• GL-4 level gear protection: Suited to manual transmissions and transaxles such as the T-5, T-45 and T-56, and to late-model BMW units.
• Compatibility: Mixes with petroleum and other synthetic fluids.

Popular applications include Toyota Type T-III and T-IV, Honda ATF-Z1, Nissan Matic D, J and K, Diamond SP-II and SP-III, Mazda ATF M-V, and many BMW and Audi/VW automatic transmissions. D4 ATF can also be used in most ZF automatic transmissions.

Red Line Oil D4 ATF suits daily drivers, tow vehicles and high-performance or racing builds. It protects transmission components and helps keep shifting consistent.