Motor oil goes in thru the cap on the top of the engine. 10W/30 sounds right.
Hydraulic fluid goes in through the top of the hydraulic tank. On mine it's the upper left of the frame as seen from the back. Oddly enough Thomas recommends 10W/30 motor oil be used as hydraulic fluid... at least it does on my T133 loader.
btw... on my loader the oil level dipstick is located way down on the bottom right side of the engine.