Automatic transmissions generate large amounts of heat and are totally dependent on the transmission fluid for cooling. When the fluid temperature exceeds 200°F the fluid deteriorates rapidly, diminishing its ability to lubricate and cool critical valves, springs, seals and other internal components, leading to premature failure and costly repairs. Over 90% of all automatic transmission failures are caused by overheating. A 20° drop in fluid temperature can double the life of the transmission!
The inefficient factory fluid cooler is located in the radiator's coolant holding tank. The hot trans fluid is cooled by transferring its heat to the colder engine coolant that surrounds it. The minimal temperature difference between the two fluids under normal conditions causes little, if any, drop in the transmission fluid temperature.
Oil Coolers perform best when installed in conjunction with the factory cooler and mounted in front of the radiator. With cool fluid re-entering the transmission, the valves, springs and seals perform as intended, resulting in smoother operation, positive shifts, lower floor board temperatures and extended life.
If you use your vehicle for towing, drive in stop-and-go traffic, or carry heavy loads, your transmission needs a Transmission Oil Cooler. If you drive a recreational vehicle, a street machine with a high-performance automatic transmission, or a race car, you also need a Transmission Oil Cooler.
Almost one third of the heat generated by the engine must be removed by the vehicle's two cooling systems. That's correct, your engine has two cooling systems. (1) The top of the engine: the area around each cylinder in the engine block, the combustion chamber areas in the cylinder heads and the intake manifold, dispel heat through the engine's radiator coolant system. (2) The rest of the engine: the crankshaft, bearings, camshaft, lifters, connecting rods and pistons are only cooled by engine oil.
The ideal operating range for engine oil is 180°F through 200°F. While operating within this range, the oil works as a lubricant, coolant, and cleansing agent in the engine. Modern engines generally run with radiator coolant temperatures between 200°F and 220°F with oil temperature ranges between 20°F and 75°F HOTTER. In other words, when the engine is performing flawlessly, the engine oil is already overheating! Oil that exceeds 220°F rapidly loses its ability to lubricate and cool causing accelerated fatigue and premature component failure.
Oil cooler coils are engineered for maximum cooling efficiency with no restriction in oil flow. Because different engines have varying oil flow requirements, Engine Oil Coolers by engine horsepower and oil flow rates. This results in cooler coil and engine flow rates that closely match.
Oil Coolers can reduce the oil temperature to between 180°F to 200°F and keep it there. Benefits are:
* Longer engine life
* Reduced heat load on engine and radiator
* Increased oil system capacity
* Lower under-hood temperatures and more!
If you spend any time in stop-and-go traffic, do any kind of towing, drive in a hot climate, or frequently use your air conditioning, your engine needs an Engine Oil Cooler!
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