Should i drive in overdrive all the time? 2000 ford ranger truck?

Should i drive in overdrive all the time? 2000 ford ranger truck? - 1

Yes, well, almost all the time.

For your daily driving, just put the shft lever on the overdrive setting and let the car's onboard computer decide when to use overdrive.

If you're towing a trailer, going up several long hills or hauling a heavy load, you can shift to the "drive" or 3rd or whatever is the next option below OD. This will prevent the truck from going into overdrive and prevent excessive shifting.

Yes leave it here. Transmission knows what to do

Yes, unless you are towing something and it's constantly shifting back and forth.

If you are driving only in town at lower speeds, it is easier on the transmission if you put it into drive, or may be called 3rd depending on the vehicle, while a vehicle is in overdrive it is designed to automatically shift into the overdrive gear and engage the lockup converter once you are no longer accelerating, so each time you bump the throttle it has to disengage the lockup converter and kick out of overdrive, this can wear a transmission out more than the other way

Hi No only when cruising down the freeway or motorway. Then it saves fuel it wilt pull up a hill

With out a load, od is fine. With a load or in a hilly area, od off.

Depends, some turn overdrive off if they drive in very hilly areas so the car/truck isn't always shifting.