7 year old transmission fluid in large jug -- still good?

[ATB88]

I've got a large 5L jug of BMW MTF-LT2 transmission fluid that I used about half of last time I did a transmission fluid service 7 years ago. The jug has been sitting on a shelf with the cap on since then. Has moved around, spent some time being stored on a shelf outside in my back yard, some time in my basement.

Is it still usable with ~100% confidence or should I throw it out and get some new stuff? Part of me wants to believe that if the bottle is sealed at least as well as the transmission is, why would it be any worse for fluid to sit in a jug? But I also know enough chemistry and materials science to know that I'm not an oil chemistry expert and maybe all sorts of weird things could happen.

[chris719]

Red Line once told me an 8 year old unopened bottle of MTL was good to use. I'm not sure if it's opened if that changes things. I don't think MTF is hygroscopic so probably ok? Some additives could separate out but I'm going to guess it is usable but I might not run it forever.

[Tbonem3]

The lube is definitly good, just shake it up as molybdenum disulfide (like graphite shavings) settle not to mention any other additives. But think about this, these fluids sit in the gearbox or diff for years and are fine. I think the motor oil isn't after a long time due to combustion, but I'm not sure. i think the annual oil change criteria could be a bit arbitrary as well, but at least combustion makes sense whereas a diff or gear box only sees the expected friction and nominal temp fluctuations so the lube shouldn't be so affected?

[bimmerfan08]

You could always have a sample of it analyzed if you want to understand if the fluid's properties are still good. Would need a control/comparative, though, if the lab doesn't have one in its database.