Anyone ever use Mobile Delvac 1 Transmission Fluid 50?

The time has come for another clutch fluid change in our Fuller 5406N. I am curious to know if anyone else has used Mobil Delvac 1 in their transmissions before. I use Mobile 1 full synthetic motor oil in all of my vehicles and I swear by it. However, I hear different things about additives, particularly those used in transmissions that make me wary to use anything that is not recommended. But of course, some oil is better than no oil...

2006 4300 series Durastar with a DT466, last 4 of VIN: 7H387378

Thanks in advance for your opinion!

 

Trying to figure out how to delete this post. Looked at Fuller's website for approved transmission fluids for my 5406N and found Mobil Delvac 1 Transmission Fluid 40 on the list of approved lubricants so now I feel silly for asking on the forum. Anyone know if there is a way to delete posts? Thanks.