DEXRON ULV is it a true ULV?

[SDChevy]

Is DEXRON ULV a true ULV? The only specs I can find for DEXRON ULV are on parts.gmc.com viscosity 29.2@40C, flash point 220C, pour point -40C. All other ULVs viscosity @40C is 19-20cst. Is GM using a different measurement standard than everyone else ASTM D445? A viscosity of 29.2 @40C is close to LV ATF. Does anyone have the actual specs for DEXRON ULV or had 3rd party tests done. Trying to figure out before I put my Bank trans pan on. Whether to use DEXRON ULV because can’t find true specs or go with Amsoil, Schaeffer’s, Doc’s, or Suncoast’s ULV.

 

[ctechbob]

I posted the specs of it somewhere a while ago. It is in the same range as Mercon and Valvoline as well as the other makers who are doing a true ULV fluid.

Mercon/Dexron ULV = interchangeable.

 

[ctechbob]

Found the thread:

Thread '10r80 atf'

Jul 12, 2021

What’s the latest consensus on atf for the Ford 10r80? Planning on doing a 30k mile pan drop and filter change a bit late- probably around 45k instead. At this point I see no reason to go with anything besides motor craft ULV especially since even amsoil seems to be recommending the wrong fluid (although some people have good reports of it).

• buck91
• Replies: 30
• Forum: ATF, Differential, Trans, Brakes, P/S

• 

 

[MolaKule]

Since that discussion, both HPL and Amsoil have introduced ULV AT fluids.

 

[SDChevy]

Found the thread:

Thread '10r80 atf'

Jul 12, 2021

What’s the latest consensus on atf for the Ford 10r80? Planning on doing a 30k mile pan drop and filter change a bit late- probably around 45k instead. At this point I see no reason to go with anything besides motor craft ULV especially since even amsoil seems to be recommending the wrong fluid (although some people have good reports of it).

• buck91
• Replies: 30
• Forum: ATF, Differential, Trans, Brakes, P/S

• 

Thanks the SDS is the information I’ve been searching for. Must be a typo on the website should be 19.2@40C per the SDS and 4.5@100C

 

[MolaKule]

Some GM Service info:

https://gmserviceinsights.com/use-the-right-transmission-fluid/

 

[ctechbob]

Since that discussion, both HPL and Amsoil have introduced ULV AT fluids.

I think there were two threads I was posting in that I'd included those two, but @MolaKule is correct, HPL and Amsoil did come out with ULV's of their own.