Appendix A - Definitions
Antifreeze:
A substance that is added to the water in a vehicle’s cooling system that lowers the freeze point to prevent freezing. The two most common antifreezes are ethylene glycol (EG) and propylene glycol (PG).
Coolant:
A fluid that transfers heat from the engine by circulation.
Extended Life Coolant (ELC): AKA - Long-Life Coolant or Organic Acid Technology:
These types of coolants have been formulated to extend the service interval of the coolant. Example of ELC is Power Cool Plus.
Fully Formulated:
Antifreeze that contains all the necessary inhibitors to protect a diesel engine and does not, therefore, require a pre-charge of Supplemental Coolant Additive before its first use.
Initial-Fill:
The coolant that is used in a new or rebuilt engine, or used any time the cooling system is emptied and then refilled with new coolant.
Standard Life Coolant (SLC): AKA - Fully-Formulated or Conventional Coolant:
These types of coolants use supplemental coolant additives (SCA) to protect against corrosion or mechanical wear. Example of SLC is Power Cool.
Supplemental Coolant Additive:
An additive used in a preventive maintenance program to prevent corrosion, cavitation, and the formation of deposits.