Antifreeze (sometimes referred to as "Coolant"), is a mix of water and chemicals (commonly, ethylene glycol) that works to keep your engine at a constant temperature, guards against overheating and freezing, and keeps your engine lubricated.
Antifreeze is an integral part of your car's cooling system - it keeps you cool in the summer and warm in the winter - and it does go bad if left alone too long.
NEVER RELY ON THE COOLANT COLOR TO DETERMINE
WHAT TYPE OF ANTIFREEZE YOU NEED!
There are NO standardized rules for manufacturers about what color to use for specific formulations. Color is NOT an indicator for usage.
COMMON SIGNS YOU HAVE A
COOLING SYSTEM PROBLEM
SmellAntifreeze has a distinctly sweet smell. If you notice a sweet smell you might have a leak.
Temperature gauge is running hotter than normal
Coolant warning light is on
May see a green, orange, or yellow liquid on the ground underneath your car depending on the Antifreeze your car uses
TouchInspect the radiator hose for wear, look for bulges and/or cracks and give it the 'squeeze test'. At room temperature the hose should be firm and flexible
SoundHear a hissing sound coming from under the hood (may be paired with steam)
how to service your cooling system
Not all products advertised are available at all stores. If an item is temporarily unavailable or in transition we will offer you a comparable product and/or priced item or a rain check. We will not issue rain checks for clearance items or items marked "While Supplies Last". All special offers have limits that apply. Items purchased up to stated limits are at coupon/offer price and thereafter at everyday low price. We reserve the right to limit quantities on all products and offers. All prices in advertisements are sale prices, unless otherwise specified, and may extend beyond the stated period. Prices are subject to stocking items only. Ad prices not applicable to special orders unless otherwise noted. You may call 1-888-OREILLY to obtain information on the store nearest you in order to inquire about product availability. Not responsible for typographical errors or omissions. Oil prices include $.04 per quart California oil reclamation enhancement act tax (in California stores only).