2002 Buick Rendezvous - Antifreeze / Coolant - Vehicle Specific

Maintain A Healthy Cooling System With Quality Antifreeze

Your engine coolant, also called antifreeze, helps your vehicle maintain an appropriate operating temperature by absorbing heat from your engine. Using the upper and lower radiator hoses, coolant is circulated throughout your car's engine and to the radiator where the hot coolant's temperature is reduced before it is returned to the engine. Antifreeze also helps prevent concentrations of water from causing corrosion and scale buildup inside the engine and keep your cooling system from freezing, which could cause extensive damage. Regularly checking and filling fluids is part of routine car maintenance, and not only does this help your vehicle perform better, but it also protects the engine from damage and corrosion. Your vehicle's owner's manual usually includes service intervals that indicate how often to flush and fill your car's coolant, and coolant levels and condition should be inspected at least at every oil change and before winter to ensure safe engine performance. If you notice a coolant leak, you should inspect your cooling system's components for signs of wear, cracks, damage, and attempt to locate the source of the leaks. It's a good idea to fix a cooling system leak as soon as possible to avoid damage to your engine that can include overheating, seizing, warped cylinder heads, or a blown head gasket. If your coolant levels are low or if your cooling system isn't working as it should, you may notice your temperature gauge reading higher than usual, your heater may stop working, or you might notice steam coming from under your hood. When you need coolant, or if you need radiator hoses, clamps, or the right tools for the job, shop O'Reilly Auto Parts. We carry the right coolant for nearly any vehicle, and also offer helpful How-To topics on cooling system maintenance, how to flush and refill your car's coolant, and much more to get the job done right.