2008 Polaris RMK Shift Owners Manual - Page 64
2008 Polaris RMK Shift Manual
Page 64 highlights
Fuel OPERATION For peak performance, Polaris recommends the use of 91 octane or higher fuel. Although 87 octane fuel is usable, some engine performance will be lost and fuel economy will decrease. Do not use lower than 87 octane fuel. Do not use fuel containing more than 10% ethanol (including E85). CAUTION Operating with obstructed fuel systems will result in serious engine damage. Perform maintenance as recommended. Damage to the fuel pump will occur if the snowmobile is operated with an empty fuel tank. Do not allow the snowmobile to run out of fuel. Always refuel when the level is low. Prolonged exposure to petroleum based products may damage paint. Always protect painted surfaces when handling fuel. Fuel System Deicers If you use non-oxygenated fuel, Polaris recommends the regular use of isopropyl-based fuel system deicer. Add one to two ounces per gallon (8-16 ml per liter) of gasoline to prevent engine damage resulting from fuel system icing and lean fuel mixtures. Never use deicers or additives containing methanol. Polaris also recommends the use of Carbon Clean Plus. See page 112 for the part numbers of Polaris products. If you use oxygenated fuel containing ethanol, additional alcohol deicers or water absorbing additives should not be used. 61