"I purchased this machine after the owner had passed away. I don't know how long they sat before I bought them. I have used the newer machine now for a couple hundred hours and it has been completely problem free. It has tons of power, doesn't use a huge amount of fuel, and is as reliable as ever. The machine will do everything a D6 or 7 size dozer will do and so much more like loading trucks, lifting things, etc. My newer machine also has a hydraulic logging winch and so far I haven't found anything it won't pull. It is an easy machine to maintain and repair. My older machine needs some engine work and it is very easy to work on provided you have a suitable hoist for the heavy pieces. Overall, I'm very happy with the machine and if I could have only one machine this would be it! "