Does anyone know the difference in Transynd off road trany fluid. I have 3 55gal drums of it sitting in my shop I use in my over the road truck. My transmission should be done this weekend and I plan on use it. Would this be a bad idea, or will it fine?

TranSyndTM RD is now available through the Allison Distributor and Dealer network. The product is available in bulk, 55-gallon drums and 275-gallon disposable totes. TranSynd RD is for use in Off-Road vocations only.

TranSyndTM RD was designed specifically for Allison for use in "Rigorous Duty" Off-Highway applications. TranSyndTM RD is a premium synthetic automatic transmission fluid that is Allison Transmission C-4 approved. It additionally meets Allison Transmission TES-353 specifications. TES 353 extended drain intervals and reduced life cycle costs are applicable to following Allison Off-Highway transmissions: 5, 6, 8, 9000 Series (Mobile and Stationary). Oil .

The advantages to promote this product are:
TranSyndTM RD is a true all weather fluid. This is especially true in artic conditions where currently fleets are using automatic transmission fluids or 10W engine oils. In many cases the drain interval must be shortened due to limited anti wear and oxidation stability.

TranSyndTM RD does not leach out copper or silver from the sintered bronze friction material and other metallic surfaces as engine oils do.

TranSyndTM RD lowers the life cycle transmission maintenance costs. The savings in filter element costs alone more than justifies the increased cost of the fluid.
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Tough call

I have switched to regular Dino and drain and refill periodically.With a "built" transmission I have decided to stay away from synthetics as the "extended drain intravels" isn't ideal.The cost verses gains just isn't worth it otherwise as temps are the same also.

A good cooler such as the one MikeL sells is leaps and bounds ahead of that for longevity of your transmission(s)!

If you got it use it. I dont know of any differences in the stuff. SHould all be the same. Like Mac said, a ITS cooler will do wonders for you

Why not email Allison and ask if the fluid you mention meets the requirements for your Allison 1000 trans.

I'm not sure I need the cooler I run a 8.1L. I change the engine t-stat to a 160deg. It droped the trany temp by the same amount. If it was regular Transynd I would't be asking but says off road. I want to make sure I'm not going to have problem with it.