C18 Marine Engines Refill Capacities Caterpillar


Refill Capacities
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1.1. Lubrication System Capacity
2.1. Cooling System Capacity

Lubrication System Capacity

The capacity of the lubrication system includes the capacity of the oil filters that are installed at the factory.

Auxiliary oil filter systems (if equipped) will require additional oil. Refer to the specifications that are provided by the OEM of the auxiliary oil filter system.

For the recommended oil, see this Operation and Maintenance Manual, "Fluid Recommendations".



Illustration 1g03174536
(1) Shallow oil pan
(2) Deep oil pan

Table 1
Lubricant Refill Quantities 
Shallow sump  49 L (52 qt) 
Deep sump  68 L (72 qt) 

Cooling System Capacity

For the recommended coolant, refer to this Operation and Maintenance Manual, "Fluid Recommendations".

Table 2
C18 Hex Cooled SCAC Engines 
Coolant System  Refill Capacity 
Jacket water system  43 L (45.5 qt) 
SCAC system  24.7 L (26.1 qt) 

Note: HEX cooled engine JW and SCAC system volumes represent the fill volumes up to the cold full mark.

Table 3
C18 Keel Cooled SCAC Engines 
Coolant System  Refill Capacity 
Jacket water system  41 L (43.3 qt) 
SCAC system  17.2 L (18.2 qt) 

Note: Keel cooled engine JW and SCAC system volumes represent the total system volumes through the top of the filler neck for customer auxiliary expansion tank sizing considerations.

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