2007 Polaris 500 XC SP Owners Manual - Page 58

Engine Break-In Oil Injection System OPERATION Always check and fill the oil tank when refueling. See page 60. CAUTION Serious engine damage can occur without the proper lubrication. Check the oil tank level often during the first tank of fuel. If the oil level doesn't go down, contact your dealer immediately. Oil Recommendations Engine lubrication comes from oil added to the fuel and oil injection systems. On Polaris snowmobiles equipped with a variable exhaust system (VES), Polaris highly recommends the use of only VES II 2 Cycle Oil. See the table below for additional oil recommendations. See page 125 for the part numbers of Polaris products. Engine Style Fan Cooled Liquid Cooled Liquid Cooled w/VES Premium 2-Cycle Good Good Good Premium Gold 2-Cycle Better Better Better VES II 2-Cycle N/A N/A Best Never mix brands of oil. Serious chemical reactions can cause injection system blockage, resulting in serious engine damage. Oils may also be incompatible and the result could be sludge formation, filter blockage, and reduced cold weather flow rates. All Polaris oils are compatible with each other. Slide Rail and Track Cooling CAUTION Inadequate cooling and lubrication will lead to overheating of the slide rail and track, resulting in premature wear and failure. Reduce speeds and frequently drive into fresh snow to allow adequate cooling and polishing of the slide rail and track surfaces. Avoid operating on ice, hard-packed surfaces or roads. 55