Just purchased a 21 model 800 yesterday. Put it in the shed yesterday had stuff to do. Jumped on it this evening and took it easy just riding around the yard. 5 mins in the coolant temp warning is going off. Checked coolant and added 1/2 gallon. Ok whatever. My son wanted me to see a trail he had been working on next door so I followed him in. Nice and easy nice wooded trail. 30-45 mins in same thing. Let it cool down he went back for antifreeze. Topped it off another 1/2 gallon. Took it straight home and put it up. Rechecked coolant. Low again. Noticed a substance hitting the floor. As a mechanic I know this ain't good. Pulled the dipstick and there is all my antifreeze. 3.5hrs on machine and only 12 miles. Never been over 30mph and never been hammered on. Wtf!!??