| The Allison tech said that a fluid change should not cause it to delaminate the clutch packs causing it to not hold as much power, but instead adding a 'fushing agent or additive' may deteriorate the adhesives holding it and the seals together. Allison has an ALLISON specific flushing machine they use. Also by adding any power increase from a tuner/chip can cause the TCM to be fooled and not hold or withstand the load there for causing strain on the torque converter under higher trottle. This came straight from Allison Transmission Distributor. |