Coolants for Detroit™ eAxles
The intent of this bulletin is to provide the requirements, directions, and information required to ensure cooling system protection for Detroit™ eAxles. 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™ eAxles must have passed internal engineering validation and meet the DFS 93K217 specification for Electric Vehicle (EV) Application with the following basic requirements:
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Provide an adequate heat transfer medium.
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Protect against cavitation damage to both cylinder liners and water pumps.
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Provide a corrosion/erosion-resistant environment.
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Prevent formation of scale or sludge deposits.
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Be compatible with cooling system hose and seal materials.
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Provide adequate freeze protection.
Coolants that are not approved for EV applications and are not listed in DFS 93K217 are not to be used in Detroit™ eAxles.