Redline's most popular and versatile ATF; D4 is suitable for use
where Dexron III, Dexron II, or Mercon fluids are recommended. D4
ATF is a fully-synthetic product designed to satisfy the improved
low-temperature requirements which will be in the new Dexron IV
specification, and the improved shear-stability requirements which
will be part of the new Mercon specifications.
Superior stability compared to petroleum ATFs allows
high-temperature operation without varnishing valves and clutches
which ultimately leads to common transmission failures in high
performance applications. Full synthetic formulation flows
extremely well and keeps within an ideal viscosity best, providing
improved shifting in cold weather.
Many Manual transmissions now call for ATF...
Redline's D4 ATF also provides a GL-4 level of gear protection,
making it a superior product for manual transmissions and
transaxles like the Corvette's T-56 and several of BMWs manuals as
The balanced frictional characteristics provide smooth and
consistent shifts even for extended drain intervals.
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