Overdrive
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Elder User
Joined: Apr 2002
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Overdrive
I'm used to driving my moms Camry that has overdrive that kicks in automatically.
My f-150 I just got, has the overdrive button. I was reading about it in the manual, and it was saying something about keeping the ovedrive on all the time and then it will go into it when needed.
So should I keep it on all the time, or turn it on when needed going up a hill on the highway or something?
Also how can I figure out what kind of MPG I get?
My f-150 I just got, has the overdrive button. I was reading about it in the manual, and it was saying something about keeping the ovedrive on all the time and then it will go into it when needed.
So should I keep it on all the time, or turn it on when needed going up a hill on the highway or something?
Also how can I figure out what kind of MPG I get?
Postmaster
Joined: Jun 1999
Posts: 2,719
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From: Lee's Summit MO
Overdrive
The E4OD is an Automatic OD transmission, it means that at 38mph it will shift into 4th gear. If you push your OD button it will keep the transmission from going into 4th gear(OD).
According to the manual, and transmission shops, you can keep the transmission in OD all the time, unless it shifts in and out of OD, then push the OD button, it will say OFF, and you'll lock out OD.
To get city mileage, fill your tank completely full, write your mileage down, drive around for a certain amount of time, and then fill it again, and divide the miles driven by the gallons you filled back up full.
Highway mileage is the same way.
This is a little more exact than avg mileage, which involves alot more time and driving.
When testing, try to avoid any type of variances, such as idling, using AC, etc.
'93 F-150 loaded and modified!
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Overdrive
[updated:LAST EDITED ON 13-May-02 AT 08:34 PM (EST)]So say I go fill my tank up tomorrow, and then drive 50 miles and fill it up with 4.3 gallons or something. I just hit "50/4.3"? If I do it the other way around I get some ridiculously small number
Yeah I know, I am very dense when it comes with math crap.
Taking a rough estimate how many gallons I used up, and how many miles I went(About 100 miles, and between 1/2 and 3/4 of a tank,dunno what that line between those means) I get about 11 mpg city
Does the camper top on the truck hurt the MPG a lot?
In ya'lls opinion should I leave the OD button on all the time or what?
Yeah I know, I am very dense when it comes with math crap.
Taking a rough estimate how many gallons I used up, and how many miles I went(About 100 miles, and between 1/2 and 3/4 of a tank,dunno what that line between those means) I get about 11 mpg city
Does the camper top on the truck hurt the MPG a lot?
In ya'lls opinion should I leave the OD button on all the time or what?
Postmaster
Joined: Jun 1999
Posts: 2,719
Likes: 1
From: Lee's Summit MO
Overdrive
11mpg in city is a good number for city mileage. A camper shell usually increases mileage, not decreases. It won't make any difference for city mileage, unfortuneatly.
'93 F-150 loaded and modified!
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Postmaster
Joined: Mar 2001
Posts: 4,968
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From: So Cal
Overdrive
A camper shell that is about even with the top of the cab can increase mileage. A fully equipped Camper with beds, kitchen etc that sticks way up over the cab can kill mileage due to wind drag and lots of weight.
Good Luck,
Jim Henderson
Good Luck,
Jim Henderson
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Elder User
Joined: Feb 2002
Posts: 755
Likes: 1
From: Campbell, California
Overdrive
>So say I go fill my tank up tomorrow, and then drive 50
>miles and fill it up with 4.3 gallons or something. I just
>hit "50/4.3"? If I do it the other way around I get some
>ridiculously small number
>
>Yeah I know, I am very dense when it comes with math crap.
>
>
>Taking a rough estimate how many gallons I used up, and how
>many miles I went(About 100 miles, and between 1/2 and 3/4
>of a tank,dunno what that line between those means) I get
>about 11 mpg city
>
>Does the camper top on the truck hurt the MPG a lot?
>
>In ya'lls opinion should I leave the OD button on all the
>time or what?
Think, miles per gallon = mpg = m/g and you'll be fine.
I have a V-8 302 with a E4OD and get about 13-14mpg 60/40 highway/city driving. I tend to lock out the OD in city driving under 40mph. I also have a shell that is even with the cab and have noticed no difference in mileage with or with out the shell. Theoretically a shell should improve your mileage because it improves the aerodynamics of the vehicle, so says Leer. My experience is it makes no difference, which is better then hurting mpg.
>miles and fill it up with 4.3 gallons or something. I just
>hit "50/4.3"? If I do it the other way around I get some
>ridiculously small number
>
>Yeah I know, I am very dense when it comes with math crap.
>
>
>Taking a rough estimate how many gallons I used up, and how
>many miles I went(About 100 miles, and between 1/2 and 3/4
>of a tank,dunno what that line between those means) I get
>about 11 mpg city
>
>Does the camper top on the truck hurt the MPG a lot?
>
>In ya'lls opinion should I leave the OD button on all the
>time or what?
Think, miles per gallon = mpg = m/g and you'll be fine.
I have a V-8 302 with a E4OD and get about 13-14mpg 60/40 highway/city driving. I tend to lock out the OD in city driving under 40mph. I also have a shell that is even with the cab and have noticed no difference in mileage with or with out the shell. Theoretically a shell should improve your mileage because it improves the aerodynamics of the vehicle, so says Leer. My experience is it makes no difference, which is better then hurting mpg.
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Joined: Dec 2001
Posts: 2,017
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From: Southeast FLA
Overdrive
[updated:LAST EDITED ON 15-May-02 AT 08:59 AM (EST)]After going through many transmissions - one about every 3x,000 miles - on our Ford ambulances, Ford told us to start turning the overdrive OFF for everything but actual highway use and similar sustained speeds. Around town or on backroads its a pain to try to monitor if the transmission is slipping in and out, or trying to slip in or out, of overdrive, so I turn overdrive OFF for every automatic vehicle I drive now unless I'm getting on a 55 or 65 MPH highway (two or four lane).
Having the overdrive ON as default is just another idea to keep the fleet-wide miles-per-gallon numbers higher to look better to the government, much like Ford's new thin 5W-20 oil does across the fleet. In Ford's corporate-heads it's not what's best for the vehicle, it's what is best for the company upon initial sale.
Having the overdrive ON as default is just another idea to keep the fleet-wide miles-per-gallon numbers higher to look better to the government, much like Ford's new thin 5W-20 oil does across the fleet. In Ford's corporate-heads it's not what's best for the vehicle, it's what is best for the company upon initial sale.
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