My parents have loved what I did to my slk and the girlfriends jeep. When I told them I'd do there cars my mom asked me if I could do their green john Deere tractor. I'm guessing it doesn't have a clear so anything I have to worry about? Can I use my same orange and yellow pads on the gg with ultimate compound and ultimate polish? With no clear coat would this discolor and ruin my pads?