Probably related to Mobil's PAO plant being directly hit by Hurricane Ike. PAO supply is real tight now with the major US supplier shut down. Allison worked with Mobil to develop another Allison-approved TES-295 fluid now as well - Castrol's not the only game in town anymore.
I believe TranSynd (make by Castrol) is still available, but perhaps not at your local shop. They may have switched to Mobil Delvac ATF over the TranSynd for some reason, not the least of which might be a marketing decision by their local management? Profit margins often dictate which product gets put up on the local shelves. There is no way to tell for sure unless you can ask the local management, and have faith in their answer.
Any TES-295 licensed fluid is a fine selection. There are also clones by Amsoil, Schaeffer's and DA-Lube that will work very well, too.
Hmmm...I have a gallon of unopened Transynd. Me thinks I'll check my local source for availability and buy another gallon if available for a future Allison fluid change instead of wasting the gallon I have or mixing two different brands.
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Diesel Place
5.3M posts
218.9K members
Since 2003
A forum community dedicated to Chevrolet and GMC diesel truck owners and enthusiasts. Come join the discussion about duramax engines, performance, builds, modifications, classifieds, troubleshooting, maintenance, and more!