Hyundai Tucson >> Engine coolant - Maintenance Have coolant changed by an authorized HYUNDAI dealer according to the Maintenance Schedule at the beginning of this chapter. WARNING. Do not use engine coolant or antifreeze in the washer fluid reservoir. Engine coolant can severely obscure visibility when sprayed on the windshield and may cause loss of vehicle control resulting in an accident. Hyundai Tucson OE Engine Coolant - autozone Order Hyundai Tucson OE Engine Coolant online today. Free Same Day Store Pickup. Check out free battery charging and engine diagnostic testing while you are in store.