Overdrive question.
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Senior User
Joined: Jan 2006
Posts: 286
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Overdrive question.
Hi there,
recently picked up a 94 F-150 302 auto.
It has the overdrive on the gear shift stock, the one where when the button is pushed it shows "OFF"
Question is, whats the deal with overdrive on this vehicle, should I leave it on all the time driving around in the city? or should I keep it lit in the OFF position? Everyother car I have had so far has had automatic overdrive so I never had to turn it on or off.
I only care about fuel mileage right now, when should I or should I not use OD?
Another side question: truck has dual tanks, are there two fuel pumps (one for each tank?)
recently picked up a 94 F-150 302 auto.
It has the overdrive on the gear shift stock, the one where when the button is pushed it shows "OFF"
Question is, whats the deal with overdrive on this vehicle, should I leave it on all the time driving around in the city? or should I keep it lit in the OFF position? Everyother car I have had so far has had automatic overdrive so I never had to turn it on or off.
I only care about fuel mileage right now, when should I or should I not use OD?
Another side question: truck has dual tanks, are there two fuel pumps (one for each tank?)
Cargo Master
Joined: Oct 2004
Posts: 2,148
Likes: 0
From: Seneca, SC
First question: The overdrive is literally another gear in the transmission. For gas mileage purposes, leave it on. Many will tell you that this will wear out the transmission faster, as it has to make one extra shift. If this bothers you then leave it off around town, when you're stopping and starting all the time. But leave it on when cruising the open road. This is where it gives you the most benefit.
The dual tanks have two sending units, but I'm not sure about the fuel pumps. sorry.
The dual tanks have two sending units, but I'm not sure about the fuel pumps. sorry.
Senior User
Joined: Feb 2005
Posts: 292
Likes: 0
From: Akron, OH
The overdrive is automatic on your truck. The button is essentially a manual override in case you are towing or going up some very steep grades. For nearly all circumstances it is best to keep it in the ON position.
Also, yes, there is a fuel pump in each of your two tanks.
Also, yes, there is a fuel pump in each of your two tanks.
Cargo Master
Joined: Sep 2004
Posts: 2,690
Likes: 6
When you read the vehicle manuals it also says to leave it on. The only time you turn it off is when you're driving at a speed, or towing or going up a hill that causes the trans to constantly shift between them last two gears. The constant shifting back and forth is what is not good for it. Otherwise you're good to go. The only time I turn off the OD on my Suburban is when I'm climbing the mountain passes and the truck isn't tough enough to stay in that last gear. It will down shift and then pick up enough speed to shift to the last gear and then slow down and then repeat that over and over.
