2002 Polaris Universal Snowmobile Owners Manual - Page 83

OPERATION Fuel The fuel used in your Polaris engine is as important to engine life and performance as the lubricant used. Most Polaris engines are designed to run on 87 octane non-oxygenated or 89 octane oxygenated pump gasoline. There's a great deal of variability in the quality of the 87 octane gasoline available across the country, so we encourage the use of premium fuel when possible. NOTE: Some Polaris snowmobiles require premium gasoline. Check your Owner's Manual Supplement to determine what type of fuel your machine requires. Premium Fuel Switch Some Polaris snowmobiles are equipped with a key function to adjust the timing on the machine as you change fuels. It's very important to the life of your engine that you use this feature. When using fuels with a pump-posted octane rating of 91 or higher, turn the key switch to "ON/PREM." When the engine is started, a yellow "Premium Fuel" light illuminates on the instrument panel. When the key is in this position, the fuel must be a minimum of 91 octane. Most high performance machines require the use of premium fuels. Substituting other fuels may cause engine damage. Premium Fuel Setting Regular Fuel Setting CAUTION Using lower than the recommended octane fuels or operating with obstructed fuel systems will lead to costly engine damage. 81