Store contents in airtight container and never use in temperatures under 32-degrees farenheit. Low or non-existent cooling levels can lead to expensive repairs and permanent engine damage. Coolant never runs dry on its own. If you find yourself needing to continuously refill the radiator fluid, you may have a leak. Locate the plastic reservoir radiator tank under the hood of your car.
Coolant is a mixture of water and antifreeze.
Never add plain water into the radiator reservoir or straight coolant. Read bottle carefully and follow mixing instructions, if necessary. Also, older-model cars require you to add coolant directly into the radiator. Using the appropriate fluid for your make and model car, pour fluid directly from bottle into reservoir. Replace cap and store remainder of bottle's contents in dry, cool area.