What Are The Advantages Of A Full Radiator?
Prior to the wide spread use of the reservoir tank (begun in the early ’70’s) expanded coolant escaped through the pressure cap, down the over-flow hose and was wasted on the road. This left 2 or 3 inches of air space in the top of the radiator. Many motorists, not understanding the operation of the older type cooling system would periodically refill the radiator, usually with water only, thereby further reducing freeze and inhibitor protection of the engines cooling system. Additional problems resulted, because the top air in the radiator mixed with the circulating coolant causing the coolant to foam. foamed coolant traps heat within engine damage. A properly designed reservoir tank eliminates the air through the pressure cap into the top of the radiator. The reservoir will not work if the cooling system has any leaks or seepage, if the radiator cap is fouled with debris or the cap seals are damaged.
