![]() ![]() True to its name, engine coolant, aka antifreeze, does not freeze in sub-zero temperatures. Commonly referred to as antifreeze, engine coolant contains ingredients that help prevent corrosion of your car’s engine parts. Coolant prevents both overheating and freezing. During the winter, extreme cold can cause your engine block to freeze and even crack. The coolant absorbs the heat from the car’s engine and circulates back to the radiator. Coolant helps protect your engine from extreme temperatures, both hot and cold. Your car’s engine runs hot while in use, hot enough to damage essential parts. Here’s how to choose the best coolant for your wheels.Įngine coolant keeps your engine from overheating and helps you avoid a costly repair bill. ![]() Different cars may need different coolant, but every vehicle needs a coolant flush approximately every five years or every 30,000 miles. Selecting the right coolant depends on several factors, including the age and type of vehicle. When you change the engine coolant, you perform a coolant flush. You can help keep your car running smoothly by performing a few simple tasks at home, such as changing the car’s coolant and other fluids. Maintenance is an essential part of owning a car. Caring for your vehicle can save you money, and can help it run for longer. Many car owners rely on regular trips to the shop to handle maintenance, such as getting the oil changed. Let’s start with the basics, which a LOT of people ignore when it comes to cooling systems. Please note that the tool that you receive after placing an online order may be in a used but operable condition due to the nature of the Loan-A-Tool® program.A good amount of Hy-per Lube’s business comes from our famous Super Coolant product, and we know a thing or two about cooling system performance. ![]() Do not wear ties or loose clothing when working on your vehicle.įREE Loan-A-Tool® program requires returnable deposit. Should electrolyte get on your body or clothing, neutralize it immediately with a solution of baking soda and water. Always wear gloves and safety glasses and other personal protection equipment, and work in a well-ventilated area. Sulfuric acid is caustic and can burn clothing and skin or cause blindness. Use caution when working with automotive batteries. Always disconnect the negative battery cable before servicing an electrical application on the vehicle to protect its electrical circuits in the event that a wire is accidentally pierced or grounded. Always chock your wheels prior to lifting a vehicle. Refer to the service manual for specific diagnostic, repair and tool information for your particular vehicle. Information is accurate and true to the best of AutoZone’s knowledge, however, there may be omissions, errors or mistakes.īe sure to consult your owner’s manual, a repair guide, an AutoZoner at a store near you, or a licensed, professional mechanic for vehicle-specific repair information. Some vehicles that have a rear AC system can use a combination of the two with an additional evaporator.Īdvice, how-to guides, and car care information featured on and AutoZone Advice & How-To’s are presented as helpful resources for general maintenance and automotive repairs from a general perspective only and should be used at your own risk. *Air conditioning systems will use either an orifice tube/accumulator or an expansion valve/receiver-drier set up. Scroll down to see a step-by-step breakdown of how refrigerant travels through your car’s AC parts. This leaves the cabin with cool air while the warm refrigerant makes its way back to the compressor. There it goes through the evaporator core in a gaseous state, allowing the refrigerant to absorb heat from the air that passes through the evaporator fins. The now cooled refrigerant moves to the low-pressure side of the system through either the expansion valve or the orifice tube, depending on which system you have. The condenser is like a small radiator where the AC hoses come in contact with the outside air, which absorbs heat from the liquid inside before the liquid reaches the AC in-line filter, which removes debris that could contaminate the system. Regardless of which of the systems your car uses, the compressed refrigerant travels from the compressor to the condenser on the high-pressure side of the system to cool off before reaching the AC evaporator core on the low-pressure side. This pressure forces the liquid out of the compressor through the hoses in your AC hose assembly, which carry refrigerant through the system. Your vehicle’s compressor, powered by the serpentine belt, compresses the refrigerant into a liquid, putting it into a high-pressure state. Any AC system requires a refrigerant, such as R-134a. ![]()
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