Operators Manual

Table Of Contents
Extended Life Coolants
Extended Life Coolant (ELC) contain Organic Acid Technology (OAT) which
provide corrosion protection and inhibit liner cavitation. These coolants require less
maintenance over the useful life of the engine.
ELC antifreeze coolants are commercially available from Detroit™ (recommended)
and other manufacturers as either concentrated or pre-mixed formulations.
Concentrated antifreeze coolants should be mixed at 50% (50% antifreeze/50%
water). All ELC's used must also meet DFS 93K217 specification. Detroit™
requires that these types of coolants to be free of nitrite and phosphate. Detroit™
has found that ELC's containing nitrite may lead to a breakdown of the coolant and
subsequent damage to the cooling system.
These types of coolants should not be mixed with Standard Life Coolants. If an
ELC antifreeze coolant and SLC antifreeze coolants are mixed, damage may not
result, but the long-life advantages of the ELC antifreeze coolant will be lost. In
this event, the coolant should be re-inhibited with OAT inhibitors and confirmed by
analysis or else it must be maintained as an SLC antifreeze coolant.
SLC Antifreeze Coolants
Standard Life Coolant (SLC) contain inhibitor salts, including nitrites, to prevent
liner cavitation. These coolants require interval testing to maintain inhibitor
concentration.
SLC antifreeze coolants are commercially available from Detroit™ (recommended)
and other manufacturers as either concentrated or as pre-mixed antifreeze.
Concentrated antifreeze coolants should be mixed at 50% (50% antifreeze/50%
water). All fully formulated coolants used must also meet DFS 93K217
specification.
NOTE: Fully formulated antifreeze does not require a dosage of
Supplemental Coolant Additive (SCA) at initial use.
Coolant Fill Options
Coolant Fill Options
The coolants recommended for use in Detroit™ engines are listed in the tables
below. This publication will give a complete explanation of their use.
NOTICE: Required specifications for water, Ethylene Glycol (EG),
Propylene Glycol (PG), inhibitor packages, and inhibitor concentration are
included in the appendix of this publication. To avoid possible engine
damage from inadequate or over-concentrated coolant, this publication
should be read thoroughly before replacing or topping-off coolant.
DD Heavy Duty Platform Operators Manual
All information subject to change without notice. 171
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