Overdrive is the normally allowed position ( it won't shift into overdrive until the
speed is fast enough )
In most cases drive with overdrive especially if maintaining over 45 mph. Take out of overdrive if on slippery pavement
No. You should not drive in overdrive all the time.
If it has overdrive use it! it is a "highway gear" it will make no difference what so ever until you get up to speed then it will shift into overdrive and save you gas!
Overdrive ON is the normal position But if you are towing something or driving in hilly country where the transmission is constantly shifting from overdrive to drive , then you want to switch the overdrive off
Overdrive allowed is the normal position
The transmission is on its way out.You could drive the vehicle with the overdrive function turned off to buy some time.
Always use overdrive except when towing or going down a steep grade.
The 2011 Ford Expedition has rear wheel drive.
The 2002 Ford Expedition has rear wheel drive.
The 2009 Ford Expedition has rear wheel drive.
The 2008 Ford Expedition has rear wheel drive.
The 2001 Ford Expedition has rear wheel drive.