What are the effects of overfilling coolant?
1 Answers
Overfilling coolant has no significant impact. The excess coolant will expand due to heat during vehicle operation and overflow through the pressure relief valve, which is harmless but may leave some stains. It is recommended to use a syringe to remove coolant that exceeds the MAX level. Coolant, short for antifreeze coolant, is designed to prevent freezing. It protects against radiator cracks and engine cylinder block damage caused by coolant freezing during cold weather parking. Coolant serves four main functions: cooling, corrosion prevention, scale inhibition, and freeze protection, making it an essential heat dissipation medium for proper engine operation.