Red Line 30504-6PK D4 Automatic Transmission Fluid (ATF) - 1 Quart, (Pack of 6)

D4 ATF is a fully-synthetic product designed with superior low-temperature properties compared to a Dexron III fluid, and the improved shear-stability requirements which is part of the Mercon V specifications.

D4 ATF also provides a GL-4 level of gear protection, making it a superior product for transmissions and transaxles. The balanced frictional characteristics provides smooth and consistent shifts for extended drain intervals. The superior stability compared to petroleum ATFs allows high-temperature operation without varnishing valves and clutches which leads to transmission failure.