Not if you have an automatic transmission.
Turns the Overdrive on and off. Used for towing because you should never tow with the transmission in overdrive.
No. Overdrive should be turned off when towing any trailer.
The car needs to go into overdrive unless you are towing something heavy which makes it shift between overdrive and non overdrive. It is better to allow the car to shift into overdrive.
Overdrive is the normally allowed position . It won't shift into overdrive until the speed is faster anyway . On my 1995 Ford Explorer it doesn't shift into overdrive until I'm travelling about 50 miles per hour ( if you are towing or driving in hilly country where the transmission is constantly downshifting then you don't use overdrive )
No.
Most of the time except when towing.
The button turns the Overdrive on and off. Leave it on unless you are towing something.
My 1995 Ford Explorer 4.0 liter will shift into overdrive at 50 MPH ( I don't know if that has anything to do with having 3.73 gears with my trailer towing package )
The overdrive should be switched off when you want to avoid unneccessary shifting. If you are driving on a hilly road, the vehicle will shift out of overdrive going uphill to maintain speed while pulling the vehicles weight up the hill, and shift into overdrive going down the hill to save fuel when additional engine power is not needed. When towing with an automatic transmission, the vehicle may tend to repeatedly shift in and out of overdrive due to the added weight. In scenerios such as these, you should turn off the overdrive to avoid the unneccesary shifting which puts more wear and tear on the transmission.
Overdrive should always be on unless you are towing something heavy.
Just put in in OD and forget it. Unless you are towing a load.
When you are not towing during highway use.