Red Line Oil's MT-90 is designed to provide excellent protection and
improved shiftability for manual transmissions and transaxles, having
cured the problem of hard shifting in thousands of transmissions with
shifting troubles. How? They have the appropriate coefficient of
friction for most manual transmission synchronizers (many gear oils,
engine oils, and ATFs are too slippery for proper synchro engagement).
The wide viscosity of MT-90 allows proper shifting over the entire
temperature range which the transmission will experience. Popular in
Nissan, Toyota and Mazda manual transmissions and transaxles as well as
other selected applications, this is a 75W90 GL-4 gear oil that's
slightly heavier than MTL.
Red Line # 50304