Mobil Delvac1 Synthetic TES-295 ATF, Allison B500; 31.1k mi, 55 mths

[jetman]

Looks good to me. Tranny is a B500 Allison 6 speed automatic in our 1995 Prevost bus/mh with 125k miles since new. I didn't change the fluid or filters this time. I did put in 2 gals of makeup fluid in 2024 because I had the heat exchanger off so as to install new hoses.

What say you?

 

[dnewton3]

TES-295 fluids (an older spec) are very excellent lubes. PAO based, typically, with a very good add-pack.

Looks acceptable for continued service. I don't have any data on these transmissions, so I cannot comment past the general nature of the lube.