RED LINE SYNTHETIC OIL CORP.
6100 Egret Court, Benicia, CA 94510 USA TEL: (707)745-6100 FAX: (707)745-3214
Synthetic Manual
Transmission Fluids
RED LINE®
SYNTHETIC
OIL
RPM
X 1000
Typical Properties
D4 High-Temp
ATF ATF MTL® MT 90 75W90NS 75W140NS
API Service Category: GL 4 GL 4 GL 4 GL 4 GL 5+ GL 5+
Recommended Use: Dexron IIE / III Dexron IIE / III
Mercon, Mercon V Mercon
Viscosity Grade:
SAE Grade (Gear Oil) 70W80 75W80 70W80 75W90 75W90 75W140
SAE Grade (Engine Oil) 0W20 5W30 5W30 15W40
Vis @ 100°C, cSt 7.5 10.0 10.6 15.6 15.6 26.9
Vis @ 40°C, cSt 34.0 53.9 56.2 90.0 94.5 179.2
Viscosity Index 198 172 183 185 176 188
Brookfield Vis @ -40°C, Poise 52 175 120 320 400 1200
Pour Point, °C -60 -51 -50 -45 -45 -45
Pour Point, °F -76 -60 -58 -49 -49 -49
Flash Point, °C 225 238 232 240 221 216
Flash Point, °F 437 460 450 465 430 420
Red Line Transmission Lubricants are designed to provide excellent low-temperature shiftability
and improved gear protection at higher temperatures. Efficiency improvements between 1-5% are
typical. The synthetic base stocks used have tremendous thermal stability and provide the best film
strength available. The unique combination of base stocks and additives allow Red Line
transmission oils to carry higher loads compared to petroleum lubricants. The stability of these
products allow them to be used for extended periods. MTL® can be used in most manual
transmissions and transaxles for both street and racing use unless the manufacturer requires the
additional protection of an SAE 90 or the extreme-pressure protection of a GL-5. In those
situations the MT 90 (GL-4) or 75W90NS (GL-5) will provide good shiftability and synchro
compatibility and extra gear protection. Limited-slip transaxles may require the 75W90 Gear Oil to
prevent limited-slip chatter. 75W140NS is designed to help reduce the noise in noisy transmissions
and transaxles, while still allowing good low-temperature shiftability. D4 ATF and High-Temp ATF
provides the gear protection of a GL-4 gear oil in an automatic transmission fluid, which is far
superior to a conventional ATF. This gear protection makes it perfect for lubricating automatic
transaxles and high-performance automatic transmissions. The D4 ATF provides the best lowtemperature
shiftability. MTL® provides better wear protection in most manual transmissions which
call for an ATF which can be very important in racing applications. MTL® provides the lowtemperature
properties equivalent to a petroleum ATF. All Red Line transmission lubricants provide
excellent synchronizer compatibility.
Rev 2/04 This is from the Redline website .Redline recommends mtl in atf lubed manual trannies .I do not know how up to date Redline keeps their website up to date.