Regular testing of ES Coolant has resulted in fairly steady SCA, but recently I found the SCA level to be considerable lower than usual. What is happening?
The most likely cause of sudden changes in SCA levels is incorrect top off coolant being used. Usually what happens is that the coolant level is refilled with whatever is handy. If your units are out of your maintenance control until they return at a later date such as in long haul situations where the truck is only in your shop occasionally, ES Coolant should be sent with the truck for top off purposes. NEVER let drivers or operators refill low coolant levels with plain antifreeze, water or water/glycol solutions. Always refill with ES Coolant. The same can be said for any cooling system filled with coolant that meets TMC RP329 or RP330 specifications. Failure to do so will result in lowered SCA levels and eventually, cylinder liner pitting.
Related Questions
- Regular testing of ES Coolant has resulted in fairly steady SCA, but recently I found the SCA level to be considerable lower than usual. What is happening?
- Does the high SCA level of ES Coolant affect the solder found in radiators or heater cores?
- What happens if my driver tops off ES coolant with regular precharged antifreeze and water?
