Does anyone know the shelf life of ATE SUPER BLUE?

I have some unopened cans of ATE SUPER BLUE but I believe they are about 4 years old. I will be flushing my brake fluid from my Integra and I want to make sure these cans are still good to use.

I searched but I only found this link in archeives
https://honda-tech.com/zerothread?id=1103925
Im interested in getting a more concrete answer as far as the shelf life for ate super blue please.

 

jeez, 4 cans!? one is more than enough to flush it. i would imagine if they are still unopened they will still be good. i dont think the metal "breathes" that much but the cap might. but who knows. call them.

 

i wrote i have some cans.
i have actually 1 unopend and the other one was opened already, so that one for sure i will dispose it.
they are probably about 4 years old.