13.3 Fuel, Oil and Coolant Specifications
DETROIT DIESEL 53
Figure A
INHIBITOR SYSTEMS
filter elements, liquid and dry bulk inhibitor additives and
An inhibitor system is considered as a combination of
as an integral part of permanent antifreeze.
chemical
compounds
which
provide
corrosion
COOLANT FILTER ELEMENTS:
Replaceable
protection, pH control and water softening ability.
elements are available with various chemical inhibitor
Corrosion protection has been discussed earlier under
systems. Care should be used in the selection of
the section on Corrosion Inhibitors. The pH control is
elements relative to inhibitor compatibility with coolant
used to maintain an acid free solution. The water
solutions shown in Figure B.
softening ability deters formation of mineral deposits.
Problems have developed from the use of the
Inhibitor systems are available in various forms such as
magnesium lower support plate used by some
coolant
1972 General Motors Corp.
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