Well since the SHO is down waiting for new meth pump, will be here today. I decided to do PTU fluid change. Since I use the drain hole as my fill hole too, wanted to come up with something little less messy. Some changed out the drain plug. Used a 1/4 to 1/8 thread coupler and a 1/8 plug. Installed the coupler with thread sealant, then filled up with Amsoil( first time trying ). My fill hose fits tightly into the center so while filling it doesn't leak out around the hose. Then pulled out the hose and installed the plug. Lost some fluid, but like I did both times before.