Where I work at I'm pretty sure we take the Tranny fluid as well as oil. It all goes in the same tank. Store manager tells me that we can also take Antifreeze in a pinch, however because of the mass quantites that would be involved in that and the filling up of our oil drum too quickly from all the antifreeze, we send them to the local recycling center where they take that as well. Check with Advance Auto, and ask the manager (not the hourly employees walking the floor) as they will steer you in the right direction.