Originally Posted by Tango
The new gen Allisons require the long life Transynd tranny fluid to keep up the warranty. And from the reports I've read...it is worth the money. Just keep the heat below 250. Lower temps = longer fluid life.
Absolutley correct. The new fluids for the allisons (tes295) is probably the best atf on the market today. But at 18 bucks a gallon for dex/merc vs. 40 bucks per gallon for something that is tes295 certified I don't find the value there on a short mile vehicle.
Synthetics are great, but not when the vehicles sits more often then it moves, which is what most skoolies are. In that case, I think it's money better left in your pocket.