How do I gear down this 6-speed in the Mountains

I got this new Ford Five Hundred with the 6-speed. The service department did not seem to know what to say. They tried to contact the service manager but he was gone for the day.
I would appreciate any advice on gearing down this 6-speed automatic. Its only got Low, Drive, Reverse and Park on the selector. I heard something about using low gear above 30 mph. I tried that coming down a overpass and the revs quickly went to over 4000 rpm.
I wonder what would happen at 40 and 45 like I did in other automatics that had a Overdrive button to shut off for 3rd gear and a 2nd on the selector.
Thanks for any advice.
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Read you manual. Moving the shift leaver to low will reduce the gear ratio to third. Naturally the RPMS will increase.
mike hunt

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Jimmy wrote:

Something to consider....
Brake pads are cheap. A transmission is not.
Your car's transmission should downshift on its own due to its programming. Chevrolet Allisons will do this, as kind of a poor man's "Jake Brake", but those are for trucks carrying heavy loads.
Is there some reason you feel the need to downshift? Is it icy/slippery conditions?
Just a query.
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Replacing rotors before driving the rest of the way home from a trip to the mountains is NOT especially CHEAP!

However This is correct... long downhills should be the only need.
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Yeh, I'm a Krusty old Geezer, putting up with my 'smartass' is the price
you pay..DEAL with it!
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Rotors are not cheap. I have a '93 Ranger with 126K miles, on the original rotors and second set of front pads.
If they make rotors so cheap that they wear THAT fast, then times have definitely changed.
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Not wear, warp. Bear in mind the thread subject.
--
Yeh, I'm a Krusty old Geezer, putting up with my 'smartass' is the price
you pay..DEAL with it!
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