I also have a 450 Rhino, best piece of equipment I think I ever bought, it's an 06 model and have never had any problems, neighbor has a 700 Rhino that he takes mudding through the ponds and occasionly drowns it and after servicing it he is gone again. Neighbors told me I needed to get myself a Rhino since my wife has one, She loves it,for running around the yard and neighborhood. (My yard it kinda large we only mow 3 1/3 acres of it,neighborhood is dirt roads.)We haul wood, dirt, hay,pull spliters,trees, vehicles,trailers,go ridding around, hauling grandson,hunting, fishing,and whatever. So far I have just put in gas,wheel spacers,and regular service.oil changes filters etc... You will love it and wonder how you got along without it.