DETROIT DIESEL 53
Fuel, Oil and Coolant Specifications 13.3
COOLANT INHIBITOR CHART
Inhibitor Compatibility
Corrosion
Complete
Ethylene
Inhibitor or
Inhibitor
Inhibitor
Glycol Base
Inhibitor System
Type
System
Water
Antifreeze
Sodium chromate
*Chromate
No
Yes
No
Potassium dichromate
*Chromate
No
Yes
No
Perry filter elements
5020 (Type OS)
*Chromate
Yes
Yes
No
S-453 (Spin on)
*Chromate
Yes
Yes
No
5030 (Type OS)
@Non-chromate
Yes
Yes
Yes
S-331 (Spin on)
@Non-chromate
Yes
Yes
Yes
5070 (Type OS)
# Non-chromate
Yes
Yes
Yes
S-473 (Spin on)
# Non-chromate
Yes
Yes
Yes
Lenroc filter element
Non-chromate
Yes
Yes
Yes
Fleetguard filter elements
DCA (Canister)
Non-chromate
Yes
Yes
Yes
DCA (Spin on)
Non-chromate
Yes
Yes
Yes
AC Filter elements
DCA (Canister)
Non-chromate
Yes
Yes
Yes
DCA (Spin on)
Non-chromate
Yes
Yes
Yes
Luber-Finer filter elements
LW-4739 (Canister)
Non-chromate
Yes
Yes
Yes
LFW-4744 (Spin on)
Non-chromate
Yes
Yes
Yes
Nalcool 2000 (Liquid)
Non-chromate
Yes
Yes
Yes
Liquid Perry (LP-20)
Non-chromate
Yes
Yes
Yes
Lubercool (Liquid)
Non-chromate
Yes
Yes
Yes
@Note 1 - Perry "Year Around" formula.
# Note 2 - Perry "Universal" formula.
Figure B
filter elements, liquid and dry bulk inhibitor additives and as an integral part of permanent antifreeze.
COOLANT FILTER ELEMENTS: Replaceable elements are available with various chemical inhibitor systems. Care
should be used in the selection of elements relative to inhibitor compatibility with coolant solutions shown in Figure B.
Problems have developed from the use of the magnesium lower support plate used by some manufacturers in their
coolant filters. The magnesium plate will be attacked by solutions which will not be detrimental to other metals in the
cooling system. The dissolved magnesium will be deposited in the hottest zones of the engine where heat transfer is
most critical (Figure C). The use of aluminum or zinc in preference to magnesium is recommended to eliminate this type
of deposit.
April, 1974
SEC. 13.3
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