ELC (Extended Life Coolant)
The maintenance interval for ELC is eight years or 15,000 hours. A nameplate near the coolant expansion tank identifies units with ELC. This coolant is Red instead of the previous Green or Blue-Green coolants.
ELC (Extended Life Coolant) Nameplate
Important Only OAT extended life coolants (Chevron Delo®
XLC or equivalent) should be added to Thermo King systems. Conventional
coolants should not be used (Typically identified by green or blue-green
color). If a conventional coolant is combined with the Thermo King
factory fill up to 25% by volume, the coolant must be changed at the
next service opportunity. Above 25%, the coolant must be changed
immediately. Conventional coolants dilute/interact with the additive
packages of extended life coolant which significantly reduces the
service life of the coolant.
Note The use of 50/50% pre-mixed ELC is recommended to ensure that deionized water is being used. If 100% full strength concentrate is used, deionized or distilled water is recommended instead of tap water to ensure the integrity of the cooling system is maintained. The engine must have antifreeze protection to -40°F/ -40°C. Check and add coolant in the expansion tank as needed.