Operators Manual

Table Of Contents
Table 29.
Freightliner EconicSD Coolant Fill Options
Engine Series
Coolant Factory Fill
Options
Service Fill Options
DD8
Silicated Organic Acid
technology (Si-OAT)
refer to 93K217 list of
approved coolants at
DTNAConnect.com
Additional approved coolant products can be found on the Detroit 93K217 list at
DTNAConnect (https://dtnacontent-dtna.prd.freightliner.com/content/public/
TechLit/lubricants_fuel_coolants.html).
Coolants for Detroit™ Engines
Coolants for Detroit™ Engines
The intent of this bulletin is to provide the requirements, directions, and
information required to ensure cooling system protection for Detroit™ engines.
These recommendations are general rules and reflect years of experience,
technology research, and product development. Specific concerns not covered by
this publication should be addressed to your local Detroit™ representative. The
coolant used in Detroit™ engines must meet DFS 93K217 Specification with the
following basic requirements:
Provide an adequate heat transfer medium.
Protect against cavitation damage to both cylinder liners and water pumps.
Provide a corrosion/erosion-resistant environment.
Prevent formation of scale or sludge deposits.
Be compatible with cooling system hose and seal materials.
Provide adequate freeze protection.
The rest of this section will describe the requirements for the proper usage of the
water, antifreeze, and corrosion inhibitors. It will also describe the coolants and
additives that are not recommended by Detroit™ and have been proven harmful to
Detroit™ engines.
Coolants NOT Permitted
The following coolants are not to be used in Detroit™ engines:
Automotive/Passenger car-type coolants must not be used in Detroit™ engines
because they offer no liner pitting protection. Also, these types of coolants
generally contain high levels of phosphates and silicates.
Methyl alcohol-based antifreeze must not be used in Detroit™ engines because
of its effects on the nonmetallic components of the cooling system and its low
boiling point.
DD Heavy Duty Platform Operators Manual
All information subject to change without notice. 173
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