Filling Remote Oil Tank; Filling Engine Mounted Oil Reservoir Tank - Mercury 300 XS OptiMax Manual

2. Open the manual vent screw on top of the cap for operation and cap
removal. Close the manual vent screw for transportation.
3. For fuel hoses that have quick disconnects, disconnect the fuel line from
the engine or fuel tank when not in use.
4. Follow Filling Fuel Tank instructions for fueling.

Filling Remote Oil Tank

Remove the filler cap and fill with the specified oil. Oil tank capacity is
11.5 liters (3 gallons). Replace the filler cap and tighten securely.
IMPORTANT: Always make sure the oil tank caps are threaded on tight. An air
leak will prevent oil flow to the engine.

Filling Engine Mounted Oil Reservoir Tank

NOTE: Filling this tank is only necessary if the oil level should ever drop and
the low oil warning system is activated.
1. Remove the top cowl.
2. Loosen the fill cap on the engine oil reservoir tank. Run the engine until all
the air has been vented out of the oil reservoir tank and tank is filled with
oil to the point of overflow.
3. Tighten the fill cap. Stop the engine and replace the top cowl.
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FUEL AND OIL
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