HISTORY
Using the lessons learned formulating a
superior and world leading Dual Clutch Transmission Fluid for the R35
GTR, Willall Racing are proud to offer their WR35TMX full synthetic
transmission fluid for the SST Dual Clutch Transmissions found in the
Mitsubishi Performance range start with the Lancer Evolution X. Using
long lasting superior additive packages to give improved clutch drive,
and having all of the gear face protection of conventional WR35TM for
GTR, WR35TMX has proven itself with hundreds of hours of track testing
across four continents, in climates ranging from Desert Summer through
to Northern European Winter.
ANALYSIS
Mitsubishi advise some wide service intervals
with their factory SST Fluid so we put this to the test gathering
samples from across the world from daily driven cars that have never
seen a track, through to heavily tracked examples that have used the
inbuilt launch control feature many times over. The story was always
the same, inadequate film strength at higher temperatures causing
premature gear wear. Here are the Filtergram lab test results from a
hard street driven 8000 mile SST transmission using factory fluid -
We
actually look at what is happening in the oil using high quality
microscope and camera technology. We do this by taking a 1ml sample of
the oil and then washing it through a 0.3 micron membrane filter at
150psi pressure. This leaves any and all contaminents in the
oil....from there we can identify them at 100X magnification.
Filtergram is industry standard high end oil testing technology and is
perfect for a wet clutch DSG gearbox arrangement where components of
different material construction all have the common lubricant.
So how is this SST Transmission holding up on factory fluid? The
answer isnt a short one. There is more 3 body fatigue and sliding wear
than should be considered acceptable in a transmission of this age and
mileage. Concerning is the 2 body cutting wear which shows that foreign
material has actively been machining sections from the gear faces and
bearing surfaces. This SST transmission is typical of most that we see
showing more accelerated wear than you would normally find in a
conventional manual transmission due both to inadequate lubricant film
strength, and service intervals that are too wide for the application.
With WR35TMX in place we have shown to reduce these wear rates 100 -
120 times, which is significant, but not out of the question when the
original lubricant witnesses to be marginal in film strength at high
temperatures.
In summary switching to WR35TMX will give the Mitsubishi SST Transmission
-
Improved Clutch Torque capacity (up to 10% greater torque handling)
-
Firmer shifting and less clutch slip at increased power levels
-
Lower Overall Transmission Temperature (slower temperature rise)
-
Reduced transmission wear and longer life
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