Polaris Widetrak LX - Manual (Page 53)

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OPERATION
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. 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 105 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.
CAUTION
Prolonged exposure to petroleum based products may damage paint. Always
protect painted surfaces when handling fuel.