dont know for sure if syntrans oil like mobil 1 will do anything for a unit like yours BUT my 03 chevy 2500 D max with an allison it made a real time difference in how long it took to shift BUT again at almost 7 bucks a quart and a pan swap is 8 quarts its not cheap but it did what i was looking for and to remove some of the sliding it did when shifting - jz
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