150 international oil

As far as the filters: For the transmission, you should have one large paper cartridge filter under the shifter console to the left of the operator's seat (inside the metal box that houses the shifter assembly). There should also be two identical smaller filters (suction and safety) that are reusable metal mesh type. One is under the floorboards like you described, and the other is in the lower engine compartment I think on the left side (from memory). Just trace the transmission oil cooler line (in front of the radiator) on back and you'll see it there sitting between the engine and the sheet metal of the loader (that one's a little hard to get to). There is only one hydraulic filter and to my knowledge it is a reusable metal mesh screw on cartridge type. It is located inside of the hydraulic tank down low. To access it you will have to remove the square metal plate that is bolted to the tank and stick your arm down in the oil to unscrew it and pull it out. Never have removed mine yet, let me know how you make out. lol

Hope this helps, good luck.