\Charcoal Cannister is part of thye Emission Control System. Cannot be removed from the vehicle. If so, will breach ADR's.
Auto Trans fluid recommended is the SPIII I believe.
It's also great as a filter for your fish tank. I think it's the same stuff
Stupid question time: Would bypassing the charcoal canister screw up A/F ratios? Or is the amount of air passing through it insignificant?