Pep Boys is back with another valuable car care tip! Maintaining your vehicle’s cooling system is essential to prolonging the life and efficiency of your engine. The coolant system dissipates engine heat into the ambient air in order to prevent overheating and to keep your vehicle running safely. Pep Boys’ coolant chemical flush and exchange service safely evacuates the old coolant, cleans your radiator and its components, and replaces it with new coolant.