Maintenance
Page 48 90-860174050 JUNE 2005
5. The coolant level should be between the "ADD" and "FULL" marks.
6102
6. Add the specified fluid as necessary.
Tube Ref No. Description Where Used Part No.
122
Extended Life Antifreeze/
Coolant
Closed Cooling System 92-877770K1
Filling
!
CAUTION
Alcohol or Methanol based antifreeze or plain water, are not recommended for use in the
coolant section of the Closed Cooling System at any time.
!
CAUTION
Overheating from insufficient cooling water will cause engine and drive system damage.
Ensure that there is sufficient water always available at water inlet holes during operation.
!
CAUTION
Air trapped in the closed cooling section of an engine cooling system can cause the
engine to overheat resulting in engine damage. To minimize the possibility of trapping air
when initially filling the closed cooling system, position the boat so that the front of the
engine is higher than the rear of the engine.
NOTE: Add coolant only when engine is at normal operating temperature.
1. Remove the fill cap from the coolant recovery bottle.
2. Fill to the "FULL" line with the specified coolant.
Tube Ref No. Description Where Used Part No.
122
Extended Life Antifreeze/
Coolant
Closed Cooling System 92-877770K1
3. Install the fill cap onto the coolant recovery bottle.
Changing
Contact your authorized Mercury MerCruiser dealer.
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