I'm not Bert, as I am in slightly better physical condition, but yes, it probably would.
Ed, you may be in better physical condition, but I'm way more handsome.
The Bentonite liquifies with heat, Al. So you may have a bit of leakage (like me when I watch Ed drive my stuff) at speed. But when cool, you won't have any puddles. Even with the STP added, the stuff hardens up.
The STP isn't there for lube. STP had a lot of tackifier, so it helps the Bentonite adhere to the gears of the box.
Bert