They claim that one insider is reporting that the problem may stem from Ford's effort to save money by using an older design of the Chinese made transmission. "The design had a drawback, a gear rattle, which Ford engineers quieted by requiring a thicker transmission fluid. Except the thicker fluid causes some of the gears to slip, creating extra wear and missed or notchy shifting.
Thanks! I was looking for this.
It will be interesting to see how this pans out for us with issues.....
I am just shy of 800 miles, and it is now very notchy in first and second gear, almost like it does not want to engage or disengage. And fifth as always....
What did Ford save by going to the M-82 versus the 6060? $100 per unit?
Does anyone make a "dog box" kit for the M-82's? As mine needs all new internals.....
Mike
DO NOT put Synchromesh fluid in your MT-82 trans. This is terrible advice.
The MT-82 ships with Ford QMS fluid from the factory. The cold shift notchiness TSB calls for replacing the fluid with FORD DCT which is a 75w-90 gear oil.
I use RP 75w-90 in my MT-82 and it works like a dream.
I have experience with many fluid swaps with even cheap Pennzoil synchromesh users that will disagree with you. This is excellent advice.
WOW! Where are you getting your information? The TSB fluid has the viscosity of a 20 grade engine lubricant. That is no where near a 75W-90 gear lube.
Here is a UOA of Ford's OEM QMS Getrag lube. After 6,000 miles, it had the sheared viscosity of a very heavy 30 grade lubricant (12.5 cSt @100*C).
Here is a VOA from the TSB replacement DCT fluid from Ford. It has the virgin viscosity of a very light 20 grade lubricant (6.28 cSt @ 100*C)
To be the viscosity of 75W-90 gear oil would required a cSt viscosity of 13.99 to 23.99. Just for reference....most 75W-90 gear lubes will be closer to 16.9-18.9. Royal Purple 75W-90 has is 17.5 cSt @ 100*C.
Iron 1
Chromium 0
Lead 0
Copper 0
Tin 1
Aluminum 2
Silver 1
Boron 238
Magnesium 1
Calcium 43
Phosphorus 2318
Zinc 3
Moly 139
vis @100°C 17.5
Congratulations, you are using a fluid that is more viscous than the initial factory fill. You have better results because you are using a fluid with superior base stocks, and the barton shifter bracket has eliminated remote shifter bind. Just wait until this hot summer weather is over, and let's see how much you boast about the heavy gear oil you have in your transmission. It may be great in the heat...but the cold weather is coming.
True synthetic synchromesh formulations are the perfect compromise between too viscous that will hinder cold weather operation, minimizing gear noise that is inherent of the getrag design chosen by Ford, and grind free operation with wear prevention. They are about 9.5-10.5 cSt @ 100*C, heavier than the TSB lube, but lighter than the OEM spec'd lube.
Wrong on multiple levels again:
http://www.fcsdchemicalsandlubricants.com/main/msds/us183455us.pdf
(Hint: Look at section 9 for viscosity and then link that to the site below)
http://www.tribology-abc.com/abc/viscosity.htm
Do some better research next time. Synchromax is the WRONG fluid to be running in the MT-82 period. TERRIBLE ADVICE! :fm:
Please allow me to help you understand where you are not looking at things on an equal plane.
The MSDS sheet you posted was the lubricant tested at 40*C, not 100*C.
Besides, I already have an exact VOA of the lubricant in question, and it's clearly a 20 grade lubricant.
Let's use a lubricant that is similar in viscosity, Amsoil Low Viscosity ATF
Kinematic Viscosity @ 100°C, cSt (ASTM D-445) ATF = 6.0 | DTC = 6.28
Kinematic Viscosity @ 40°C, cSt (ASTM D-445) ATF = 29.8 | DTC = 32.0
My 100*C number, and the 40*C number that explains the MSDS sheet falls in place, and proves my point.
I have my first track day in a few weeks and will change it again after that to either Amsoil or Redline.