Can Engine Coolant Evaporate? The Truth About Fluid Loss

can engine coolant evaporate

Engine coolant can evaporate, but it does not evaporate significantly under normal conditions because it operates within a pressurized, closed-loop thermal management system. True environmental evaporation is limited to less than 500 mL every 3 to 6 months, escaping strictly through the overflow reservoir vent via differential distillation. Any rapid, noticeable drop in fluid level […]