Ski-Doo 1997 FORMULA 500, Operator'S Manual

Page: 47 / 126

45
FUEL AND OIL
Recommended Fuel
All Models Except Formula III and Mach 1/Z
Use regular unleaded gasoline, available from most service stations
or gasohol containing less than 10% of ethanol. The gasoline used
must have an octane number (R + M)/2 of 87 or higher.
Formula III and Mach 1/Z
Use super unleaded gasoline, available from most service stations.
The gasoline used must have an octane number (R + M)/2 of 91 or
higher.
All Models
NOTE : In most service station pump octane number corre-
sponds to (R + M)/2 octane number.
-
CAUTION
Never experiment with other fuels or fuel ratios. The use of
unrecommended fuel can result in snowmobile performance
deterioration and damage to critical parts in the fuel system
and engine components.
◆
WARNING
Never top up the fuel tank before placing the snowmobile in
a warm area. As temperature increases, fuel expands and
might overflow. Fuel is flammable and explosive under cer-
tain conditions. Always wipe off any fuel or oil spillage from
the snowmobile.
'