Help with fuel milage
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New User
Joined: Jan 2011
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Help with fuel milage
Hello, Iam a new member but I have been a looker for years.
I bought a 1992 f350 4x4 with a 460 and a 3 speed auto and 4:10 gears
I would like to know if changing the gears in the front and rear end would be worth it to get better fuel economy?
Any other ideas??
I bought a 1992 f350 4x4 with a 460 and a 3 speed auto and 4:10 gears
I would like to know if changing the gears in the front and rear end would be worth it to get better fuel economy?
Any other ideas??
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New User
Joined: Jan 2011
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yeah the 4:10s are stock. I run stock tires 235/85/16. pretty sure thats the size.
Is there anything I can do that does not cost as much as changing gears?
Will a cold air intake help? a throttle body spacer??
I love this truck and it runs and drives great. But the gas is killing me.
Could I put a AOD in it?
Is there anything I can do that does not cost as much as changing gears?
Will a cold air intake help? a throttle body spacer??
I love this truck and it runs and drives great. But the gas is killing me.
Could I put a AOD in it?
Cargo Master
Joined: Jan 2007
Posts: 2,243
Likes: 79
From: Roman Forest, TX
With that 460 and 3spd, I really doubt you're going to be able to squeeze more than a mile or two at best pg. I just don't see you being able to make up for it by adding all that other stuff. TBS has never been shown to have any significant improvement, cold air intake is iffy. The AOD may help if you do a lot of highway driving, not sure about daily/city. I don't think changing gears is going to help that much either, but could be your better bet. I would look at the cost of changing them, and the potential gain, and see if it is really worth it.
Good luck.
Good luck.
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thanks.
Yeah that is what Iam trying to figure out. If it is worth chamging. Most of my driving with this truck is 45-55mph. 60MPH is to fast for truck. Engine is screaming at that point. Right now the truck is in 3 rd gear by 25mph. We use it to plow snow and haul a small dozer. With gas at 3.15 per gallon and going up it is getting crazy. But Iam sure everyone with a truck has the same complant.
Thanks for all the help. If anoyone has more ideas, please pass them on.
Yeah that is what Iam trying to figure out. If it is worth chamging. Most of my driving with this truck is 45-55mph. 60MPH is to fast for truck. Engine is screaming at that point. Right now the truck is in 3 rd gear by 25mph. We use it to plow snow and haul a small dozer. With gas at 3.15 per gallon and going up it is getting crazy. But Iam sure everyone with a truck has the same complant.
Thanks for all the help. If anoyone has more ideas, please pass them on.
FTE Leadership Emeritus
Joined: Sep 2000
Posts: 23,174
Likes: 1,678
From: Stephensville WI
Even if you did, is it worth it?
Say you change to a 3:55 gear set and your mileage goes up 2 MPG. You spend $800 to perform the change. If you were getting 10 MPG and now you're getting 12 MPG, your cost per mile went down about 5 cents. Your break even point is at 16000 miles. Will the truck be in service? Will you still own it?
These figures are estimates, but a 2 MPG gain and $800 are both very optimistic estimates. Most likely your payback will be somewhere around 35-40,000 miles.
Say you change to a 3:55 gear set and your mileage goes up 2 MPG. You spend $800 to perform the change. If you were getting 10 MPG and now you're getting 12 MPG, your cost per mile went down about 5 cents. Your break even point is at 16000 miles. Will the truck be in service? Will you still own it?
These figures are estimates, but a 2 MPG gain and $800 are both very optimistic estimates. Most likely your payback will be somewhere around 35-40,000 miles.
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