Why Change Antifreeze?
Antifreeze circulates in a sealed system providing engine cooling, passenger compartment heating, and corrosion protection to the engine. However, time, hot and cold cycling, oxidation, and topping-off with water can render the antifreeze incapable of meeting these basic performance requirements. The additives are eventually used up, the freezing and boil-over protection is diluted, and the glycol itself degraded. Continued use can lead to overheating, freezing, and engine failure. Regular antifreeze service protects the entire cooling system (coolant passages in the engine block, radiator, thermostat, valves, water pump, hoses and computer sensors) just as regular oil changes protect the engine.
Antifreeze circulates in a sealed system providing engine cooling, passenger compartment heating, and corrosion protection to the engine. However, time, hot and cold cycling, oxidation, and topping-off with water can render the antifreeze incapable of meeting these basic performance requirements. The additives are eventually used up, the freezing and boil-over protection is diluted, and the glycol itself degraded. Continued use can lead to overheating, freezing, and engine failure. Regular antifreeze service protects the entire cooling system (coolant passages in the engine block, radiator, thermostat, valves, water pump, hoses and computer sensors) just as regular oil changes protect the engine. Time & Mileage: Extending the service life of antifreeze beyond manufacturer recommendations is an expensive gamble. Recommended service intervals for conventional green antifreeze range between 2 years /30,000 miles (whichever comes first), and 3 years / 60,000 miles (whichever comes first).
