18 Durango SRT Antifreeze smell

We have an '18 Durango SRT that smells like anti-freeze,but is never low. We don't have any leaks from radiator or heater core, no leaks underneath or through the exhaust. We've had it back to the dealer several times and they keep changing different engine components with no success. Anybody else with ANY 392 have this issue?
Author: DMN KLR