Polaris 2003 Universal Snowmobiles - Manual (Page 89)

87
OPERATION
Engine Break-In
Oil Injection System
Always fill the oil reservoir when refueling. Fuel-to-oil mix ratios are
controlled by the oil pump and correspond to the engine’s RPM and
throttle valve opening.
Variable Exhaust System
All snowmobile engines equipped with variable exhaust valves should
use VES 2 Cycle Oil (see chart on page 87).
Lubrication
The only source of engine lubrication for your engine comes from
lubrication added to the fuel and oil injection systems. Use only
Polaris products. We are continuously testing lubricants and provide
the highest performance products available for your engine. Please
refer to the table below to determine the preferred and acceptable oils
for use in your engine.
Never mix other brands of oil. They may be incompatible and the
result could be sludge formation, filter blockage, and reduced cold
weather flow rates. All Polaris oils are compatible with each other.
Premium
2 Cycle
Premium
Gold
VES
2 Cycle
Fan Cooled Good Better N/A
Liquid Cooled Good Better N/A
Liquid VES Good Better Best
Check the oil tank level often during the first tankful of
fuel. If the oil level doesn’t go down, contact your dealer
immediately.
CAUTION