Quote:
Originally Posted by Bill
Another thing that I discovered on my 2002 and 2006 Explorers (4.6 L, tow package) is that it helps to keep road speed up as high as you are comfortable with. More air through the radiator made a big difference for me, whereas if you creep along, trying to go easy on the engine, there is no air flow except what the fan can provide.
Bill
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My experience, especially with transmission temps on the 08 Explorer is not quiet the same, at least with long steep hills like the infamous Grapevine. Perhaps it's the hot ambient temps (35-40 C), but lower gears tenses to raise tranny temps even more. I did, in general, keep my speed up to 45-55 mph. Perhaps I'm paranoid of increasing temps, but I'm not comfortable with coolant temps above 105 C (220 F) so I turn the heat on to keep the temps below that. So far that has worked well. Tranny temps seem harder to control. Faster vehicle and engine speed did not lower tranny temps much.