Joined: 22 Aug 1999
Location: Seattle, WA USA
|Posted: Mon Apr 11, 2005 1:30 pm Post subject: Redline Racing Oil/Lube guide
|Check out this PDF for a guide to selecting your Redline oil for transmission/diff http://www.redlineoil.com/whitePaper/18.pdf
Red Line Gear Oils, with the exception of the
75W90NS, and 75W140NS, already contain friction
modifier required for operation in limited-slip differentials.
Additional additive is not usually required, but
newer units or those with more lockup capability may
require 1-4% additional Red Line Limited-Slip Friction
Modifier. If Red Line is not available, the manufacturers
recommended friciton modifier is compatible. Do not
add addtional modifier unless necessary, as too much
will result in excessive wheel spin. To perfectly tune a
differential, start with the 75W90 NS or 75W140 NS and
required such as in qualifying laps.
ShockProof™ EP Gear Oil - a unique lubricant containing
a suspension of solid microscopic particles as an
extreme pressure agent. The viscosity characteristics
allow the lubricant to resist throwoff and provide a film
thickness greater than an SAE 250 grade, with the same
low fluid friction as with the 75W90. Recom-mended for
off-road racing and problem gearboxes. Also available in
LightWeight and SuperLight viscosities.
MTL® - Manual Transmission/Transaxle Lubricant.
A 75W/80W GL-4 gear oil which is designed for manual
transmissions which require 75W or 80W GL-4 gear oils,
motor oils, or most special synchromesh fluids. It provides
low temperature shiftability equal to an ATF, yet
will not thin out or shear at high temperatures and provides
the substantial gear protection of a GL-4 gear oil.
The higher synchronizer coefficient of friction allows
faster upshifting and downshifting and the lubricant is
non-corrosive to synchros and bushings.
MT-90 - Manual Transmission/Transaxle Lubricant.
A 75W90 GL-4 gear oil which is designed for manual
transmissions which require 75W90, or 90 GL-4 gear oils
or motor oils. Uses the same chemistry as MTL® , but is
petroleum and other synthetic ATFs.
DIFFERENTIALS - Red Line 75W90 Gear Oil provides
excellent protection in nearly all differentials, conventional
and limited-slip, in both racing and street use.
75W90NS and 75W140NS can be used in certain limited-
slip units in racing to lock-up the differential.
80W140 should be used in commercial hauling, problem
limited-slip units, racing applications which see
tremendous torque at low speeds, and where noise
deadening is desired. LightWeight or SuperLight can be
used to obtain maximum power transfer in racing differentials
which do not see high temperatures.
TRANSMISSIONS - 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.
LightWeight Gear Oil can be used in transmissions calling
for a 75W or 80W GL-5. 75W140NS will provide
greater high-temperature viscosity, reducing gear noise
and rattle. D4 ATF can be used where the manufacturer
calls for an ATF as the D4 has GL-4 gear protection
and provides the best low-temperature shiftability.