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Message: <blockquote data-quote="sakuraguy" data-source="post: 984670" data-attributes="member: 6441">Radiator EfficiencyRadiator efficiency is directly related to the care and maintenance of the cooling system. Once you better understand the level of stress that a car radiator goes through, you’ll probably be in a position to ensure long-term radiator care. This radiator article is written to help communicate the cooling power of the radiator.First, more than 1/3 of the heat produced by your car’s engine ends up as what’s called “waste heat” in the radiator and cooling system. In fact, a gallon of gasoline will ultimately produce 19,000 to 20,000 BTUs of heat energy when it is burned. This is enough heat to boil more than 120 gallons of water, so you can understand the amount of heat your 2-3 gallons of coolant must deal with. If the radiator isn’t efficient at removing heat through the circulation of the coolant, then overheating can quickly set in. But the coolant isn’t the only component that helps keep your engine running cool. You also have to have a fan to pull air through the radiator, a water pump to keep the coolant circulating, and a thermostat to help regulate the temperature of the engine. In addition, the radiator coolant must have a good mix of water and antifreeze so that your car has adequate freezing and boiling protection. Finally, some corrosion inhibitors might be helpful as it can protect against rust, oxidation and electrolysis.In order to keep your radiator and cooling system in good operating condition, be sure to check the following periodically:Coolant LevelChecking the coolant level regularly can help you detect leaks before they lead to overheating. The coolant level should be checked from the coolant reservoir, not the radiator, because the radiator will actually siphon coolant from the reservoir as needed. Even without a leak, most cars will lose some radiator coolant due to evaporation. This is of little concern, but if a lot of coolant is lost in a short amount of time, then this is indicative of a radiator problem. Strength of AntifreezeThe maximum strength of antifreeze should be limited to 65% to 70% (when compared to water) because too much antifreeze and not enough water will actually reduce the coolant’s ability to carry and process heat. In hotter weather or under heavier loads, the risk of overheating increases even more. By increasing the concentration of antifreeze in the coolant (within reason) you can help raise its boiling temperature and lower its freezing point. Condition of Coolant You won’t be able to gauge the condition of your radiator coolant by looking at it. Even if it looks like new, the chemistry must be right to avoid problems. The old rule of changing radiator coolant every two years or 30,000 miles is still acceptable for more green and yellow coolants. But even if your car uses “long-life” coolant, the same rule applies if the system may have been contaminated or inadvertently mixed with conventional coolant.</blockquote>

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