Google is your friend. Just ask the self appointed know it all....2 years ago or so, I only put 50 or so hours on it each year. Just bad timing Danny is having people over next weekend. Mostly family, a over night camp out in the back yard. just have to figure out how to flush it al out hoses, gear boxes, rams etc. Fi it and dump it then refill it? No idea the book has no info for it.