Section 4 - Maintenance
Page 40 90-8M0113925 eng DECEMBER 2015
Closed Cooling System
Coolant Requirement
NOTICE
Using propylene glycol antifreeze in the closed cooling system can damage the cooling system or the engine. Fill the closed
cooling system with an ethylene glycol antifreeze solution suitable to the lowest temperature to which the engine will be
exposed.
NOTE: All factory‑installed closed cooling systems come filled with Extended Life Coolant. This antifreeze requires draining and
replacing every five years or 1000 hours of operation, whichever comes first. The color of this antifreeze is orange. Any "top‑off"
fluid used must be Extended Life Coolant.
Tube Ref No. Description Where Used Part No.
122
Extended Life Antifreeze/Coolant Closed cooling system 92-877770K1
Checking Coolant Level
!
CAUTION
A sudden loss of pressure can cause hot coolant to boil and discharge violently resulting in serious injury from burns. Allow
the engine to cool down before removing the coolant pressure cap.
IMPORTANT: Tighten the pressure cap securely.
The coolant level should be at the full mark on the coolant reservoir when the engine is cold.
Coolant recovery bottle
a - Coolant reservoir cap
b - Sight window
c - Coolant reservoir
d - Full mark (engine hot)
e - Full mark (engine cold)
Filling the Closed Cooling System
IMPORTANT: The engine must be cooled to ambient temperature to correctly perform the following procedure.
NOTICE
Using propylene glycol antifreeze in the closed cooling system can damage the cooling system or the engine. Fill the closed
cooling system with an ethylene glycol antifreeze solution suitable to the lowest temperature to which the engine will be
exposed.
The coolant section of the closed cooling system must be filled with a 50/50 mixture of Extended Life Antifreeze/Coolant and
distilled water.
Tube Ref No.
Description Where Used Part No.
122
Extended Life Antifreeze/Coolant Closed cooling system 92-877770K1
NOTE: Coolant section capacity is approximate.
8.2 Models
Capacity Fluid Type
Closed cooling system 17.4L (18.4 US qt) Extended Life Antifreeze/Coolant
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