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Keep the temperature steady in your car or vehicle’s engine with antifreeze or coolant. Though they are both used to regulate temperature—usually in automotive engines—antifreeze is an additive that lowers the freezing point of water-based liquids while coolant is used to reduce the temperature of a system. Zoro’s selection of coolants, antifreezes, radiator fluids and flushes can all be used to protect engines from freezing or overheating, which is hugely important for the overall health and longevity of your vehicle’s heart—the engine. Once you’ve got your coolant and antifreeze, shop for motor oil, transmission fluid, additives and protectants.