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The engine cooling system is dealing with way more heat than the tranny. 75% of the gas you buy is wasted as heat. Your tranny heat is a drop in the bucket. The tranny cooler itself is liquid to liquid. The air to liquid ones are crap, and I have used them. The much, much better thing--IF you have installed a gauge and KNOW that your fluid is too hot--is to install a larger radiator for an automatic, like one from an Explorer with A/C.
My diesel has both the engine oil cooler and the tranny cooler in the radiator tanks--one set of fitting on each side of the radiator. The engine oil cooler on my bus is a liquid-to-liquid exchanger screwed to the side of the engine block.
Spend your money how you want to, and believe any advertizing and cool pictures of swirly tubes that you want. It's a fact that air is a much better insulator than liquid. It's 100x less dense--there's no mass in it to absorb heat. I don't know why Ford puts those retarded little aux. coolers on there. What YOU should do is upgrade to a better radiator, IF you know there is a problem. A $200 cooler won't have nearly the effect of a larger radiator.
My diesel has both the engine oil cooler and the tranny cooler in the radiator tanks--one set of fitting on each side of the radiator. The engine oil cooler on my bus is a liquid-to-liquid exchanger screwed to the side of the engine block.
Spend your money how you want to, and believe any advertizing and cool pictures of swirly tubes that you want. It's a fact that air is a much better insulator than liquid. It's 100x less dense--there's no mass in it to absorb heat. I don't know why Ford puts those retarded little aux. coolers on there. What YOU should do is upgrade to a better radiator, IF you know there is a problem. A $200 cooler won't have nearly the effect of a larger radiator.
