Just paid what is probably a record high to get my trans rebuilt, the genius forgot to torque the drain plug back so it fell out somewhere on the highway and I drove the gx a couple miles while it leaked all over the place. When I finally parked and turned it off is when it really started pouring out. The issue is I don’t know how much I lost and wanted to see if anyone had any tips on determining how much to put back since I have no clue how much was lost.