MT82 MANUAL 6-SPEED TRANSMISSION COLD START SHIFT EFFORT - BUILT ON OR BEFORE 8/15/2011
Publication Date: November 3, 2011
The article supersedes TSB 10-3-18 to add a production fix date.
Some 2011-2012 Mustang vehicles equipped with a MT82 6-speed manual transmission built on or before 08/15/2011 may exhibit increased shift efforts in cold ambient temperatures. This is usually most noticeable in 1st and 2nd gears but may also be noticed in 3rd through 6th gears. The increased shift effort may be the result of the increased viscosity of the transmission fluid in cold weather.
Follow the Service Procedure to correct the condition.
Replace the Motorcraft® Full Synthetic Manual Transmission Fluid with 2.6L (2.7 qt) of Motorcraft® Dual Clutch Transmission Fluid. Refer to Workshop Manual, Section 308-03A for the transmission fluid draining and filling procedure.
This fluid is suitable for use in all ambient temperatures and seasons, and the Scheduled Maintenance guidelines in the Owner Guide can continue to be followed.
The use of friction modifiers or other fluid additives is not recommended since although they may provide some immediate improvement in cold shift effort, they are likely to result in long term degradation of the synchronizers.
Motorcraft® Dual Clutch Transmission Fluid
Eligible Under Provisions Of New Vehicle Limited Warranty Coverage IMPORTANT: Warranty/ESP coverage limits/policies are not altered by a TSB. Warranty/ESP coverage limits are determined by the identified causal part and verified using the OASIS part coverage tool.
2011-2012 Mustang: Drain And Refill the Transmission (Do not Use With Any Other Labor Operations)