Viability of CAT TDTO for Allison 10L1000?

[2022_Silverado]

I have a 2022 Silverado 3500 HD dually with an Allison 10 speed. It’s time to do a transmission service again and I have some spare CAT TDTO on hand and I was wondering if it was better than the AC Delco Dexron. The trans fluid recommended by Chevrolet is for passenger cars all the way up to medium duty trucks. I can’t help but feel like the internal stresses of a passenger car and medium duty truck towing heavy aren’t the same. Therefore, I feel that since the vehicles have different applications, the trans fluid must be different to accommodate each respectively. I would be led to believe the car and truck require different additive packages. CAT TDTO seems to have a much more robust additive package, but the thing that worries me is it’s not designed specifically for a TCC automatic transmission and is more for powershift automatics or semi automatics as well as final drives and other associated components


Anyone have any thoughts or glaring concerns that maybe I am missing due to an inadequate understanding of organic/inorganic chemistry and context of additive packages of trans fluids?


Thanks

 

[JavierH19]

The powershift is a dual dry clutch though some are wet clutches but those have a different fluid so the trans fluid never touches the clutches in the dry ones and automated manuals are just manuals as far as oil goes.

I don't think I'd use it even if it was the thinnest version being the 10w which is still a bit thicker than ulv. Dexron c3 c4 additive design is for old dex 3 and allison tes 389 applications which isn't what the 10 speed uses. I'd only use ulv in it.

 

[JavierH19]

Napa has the lowest price for ULV I've seen. Order a bunch, It's never this cheap. I'll be ordering some for mine.

https://www.napaonline.com/en/p/VAL...coe_google_monthly-special_202411&store=26002

 

[wwillson]

Anyone have any thoughts or glaring concerns

Yes, do not use the CAT fluid, it's not close to being the same as DEX ULV. HPL makes a trans fluid that is made for the GM 10 speeds. I use it with great results.

 

[nascarnation]

That trans is "Allison" in nameplate only but if it was mine I'd be running TES-295/668.