When I sold my '06, it had about 600 hours on it and used ZERO oil, so any oil consumption is a concern. As you mentioned, it only holds 2 quarts, so it doesn't take much to run one dry and blow the engine. I changed my oil every 50 hours and the oil level at time to change was always the same as when I filled it. If you're using more than a pint in 50 hours, I'd start looking at a rebuild (assuming that it isn't leaking out somewhere).
PRCforum is the best Polaris forum community to discuss RZR 1000, Crew 900, PRC Ranger Club, XP 900, RZR XP 4 900, RZR 570, HD, 170, RZR-S, XP 900, RZR XP 4 900, ORV, side by side, SSW and off-road information.