Hi Guys, I just bought a used People 50. It is in pretty good shape but I do not think that it was well maintained so I want to take care of a lot of things with it. I am wondering if you guys change the gear oil? I know there is a drain / fill plug in the gear box so I assume the oil is supposed to be changed but wanted to double check. Also, is the standard 10w90 gear oil as the service manual suggests best? I am pumped about this new scooter, thanks in advance for the help/advice.