Hmmm....I've posted in the past about a similar 'whine' that I hear on my vehicle. It occurs between 64-70mph and only when I have my foot on the gas, or when fuel is being supplied to the engine at that rate of speed/rpms. For example, if I am sitting there on cruise control I hear the whine, but if I start to coast down a hill or something (while on cruise) the noise goes away because the accelerator cuts out. I don't hear it below 60mph or above 75mph or so (although I rarely travel above 70 on the highway) My car has 20,600 miles on it. Could it be the same thing?