Polaris 2011 Widetrak LX - Manual (Page 54)

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OPERATION
Fuel
Your POLARIS engine is designed to run on 87 octane non-oxygenated
or 89 octane oxygenated pump gasoline. There’s a great deal of variabil-
ity in the quality of the 87 octane gasoline available, so we encourage
the use of premium fuel when possible. Do not use lower than 87 octane
fuel. Do not use fuel containing more than 10% ethanol (including E85).
NOTICE: Using fuels with a lower than recommended octane or operating with
obstructed fuel systems will result in serious and costly engine
damage. Always use the recommended fuels for your snowmobile.
Fuel Reserve Capacity (Mechanical Gauge)
There are approximately two gallons of fuel left in the tank when the
mechanical fuel gauge reads RES.
Fuel System Deicers
If you use non-oxygenated fuel, POLARIS recommends the regular use
of isopropyl-based fuel system deicer or POLARIS Carbon Clean Plus.
Add one to two ounces per gallon (8-16 milliliters per liter) of gasoline
to prevent engine damage resulting from fuel system icing and lean fuel
mixtures. Never use deicers or additives containing methanol. See page
103 for the part numbers of POLARIS products.
If you use oxygenated fuel containing ethanol, additional alcohol deic-
ers or water absorbing additives are not required and should not be used.
NOTICE: Prolonged exposure to petroleum based products may damage paint.
Always protect painted surfaces when handling fuel.