So i just reached over 20 hours on my 2012 sportsman and did my first engine oil change. minor. Im a little confused though looking at the manual. my question is when though do i change the other fluids like the transmission, demand drive and gear case oils? it says inspect and change yearly listing 25H so im assuming first change would be a year after i bought it? And also whats the key to filling those fluids with those hard to reach fill spots. Any special funnel or tube youre using? sorry this is all new to me.