TM 5-3895-382-24
Supplemental coolant additive Is necessary for proper
conventional coolant maintenance. Most coolant
solutions DO NOT contain sufficient supplemental
coolant additive for diesel engine application.
NOTICE
Do not exceed the recommended six percent
supplemental
coolant
additive
concentration.
Excessive
supplemental
coolant
additive
concentration can form deposits on the higher
temperature
surfaces
of
the
cooling
system,
reducing the engine's heat transfer characteristics.
Reduced heat transfer could cause cracking of the
cylinder
head
and
other
high
temperature
components. Excessive supplemental coolant
additive concentration could also result in radiator
tube blockage, overheating, and/or accelerated
water pump seal wear. Never use both liquid
supplemental coolant additive and the spin-on
element (if equipped) at the same time. The use of
those
additives
together
could
result
in
supplemental
coolant
additive
concentration
exceeding the recommended six percent maximum.
Use
liquid
supplemental
coolant
additive
or
a
supplemental coolant additive element (if equipped) to
maintain a three to six percent supplemental coolant
additive concentration in the coolant.
NOTE: Caterpillar test kits check for concentration
of nitrites in the coolant solution. Some
manufacturers'
supplemental
coolant
additive are phosphate based. Caterpillar
test kits provide inaccurate results with
phosphate
based
supplemental
coolant
additive. Commercial supplemental coolant
additive products must contain silicates and
a
minimum
of
70
grams
per
3.8 L
(1 US gal)(1200 ppm) nitrites. If another
manufacturer's
supplemental
coolant
additive is used, use that manufacturer's test
kit.
Follow
the
manufacturers
recommendations
for
cooling
system
treatment and test evaluation.
Test the coolant periodically to monitor supplemental
coolant additive levels. Use the 4C-9301 Test Kit to
check for Caterpillar supplemental coolant additive
concentration. The kit also provides cooling system
maintenance recommendations. This kit is specifically
designed for use with Caterpillar supplemental coolant
additives. The 8T-5296 Test Kit can also be used to
check for Caterpillar supplemental coolant additive
concentration.
The tables list the par numbers and quantities of
supplemental coolant additive (liquid and sold) available
from your Caterpillar dealer. Follow the instructions on
the label.
LIQUID SUPPLEMENTAL COOLANT ADDITIVE
Cooling System
Capacity
Part Number
Amount (Every
250 Hours)
1
22-30 Liters
(6-8 US gal)
6V-3542
1 container
30-38 Liters
(8-10 US gal)
111-2372
1 container
38-49 Liters
(10-13 US gal)
111-2372
1 container
49-64 Liters
(13-17 US gal)
8T-1589
1 container
111-2372
1 container
64-83 Liters
(17-22 US gal)
6V-3542
1 container
83-114 Liters
(22-30 US gal)
3P-2044
1 container
3P-2044
1 container
114-163 Liters
(30-44 US gal)
6V-3542
1 container
163-242 Liters
(44-64 US gal)
3P-2044
2 containers
'
Do not use a supplemental coolant additive element and a
liquid supplemental coolant additive at the same time. Do
not exceed the maximum concentration of six percent Check
the concentration with a supplemental coolant additive teat
kit.
Maintenance Section
Cooling System Specifications
1-29