poor fuel millage.
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Temporarily Deactivated
Joined: Oct 2008
Posts: 613
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From: Ky
poor fuel millage.
I have 01 f350 and i get around 300-370- miles out of a full tank.Im not shure what size my tank is but i think its 38 gal if thats the case im only getting 10 or so mpg.Is this right or is there some thing wrong?my truck is a 4door extended cab with a short box,so im not shure on tank size.Also how serious is the "valley pan oil leak" i think thats what its called.I was looking under my hood the other day and i noticed alot of residue on the rubber booots that come off the turbo to the intake on the motor.So i started to look around and the one sied rite below the valve cover u can see were its wet with oil.Its not leaking bad ithe dipstick says i havent lost any oil and its not leakyng down on the bell housing like i have heard it can. any info would be great.Im new to the diesel world so i dont now much about them.Also my truck has 90k on it.
FTE Legend
Joined: Aug 2004
Posts: 37,887
Likes: 20
From: North Central Rural Sask.
I would start by tightening those clamps, well everywhere.
Second what I would do is fill your tank right up to the max (it can take a few minutes to fill it up right to the brim, after the pump clicks off) and get a slightly more accurate reading of your fuel mileage.
That 70 miles makes quite a difference when figuring out mileage.
Also remember that winter diesel is upon us now, and mileage does go down in the winter time.
Second what I would do is fill your tank right up to the max (it can take a few minutes to fill it up right to the brim, after the pump clicks off) and get a slightly more accurate reading of your fuel mileage.
That 70 miles makes quite a difference when figuring out mileage.
Also remember that winter diesel is upon us now, and mileage does go down in the winter time.
FTE Legend
Joined: Aug 2004
Posts: 37,887
Likes: 20
From: North Central Rural Sask.
What gears do you have? And when you average your fuel consumption out, is that mainly highway?
Also, when you looked in the valley, are you sure it was oil? My dads truck has a little diesel in the valley of his, and needs some o-rings replaced, and from the little bit of diesel all over, the dust really sticks to it...
Also, when you looked in the valley, are you sure it was oil? My dads truck has a little diesel in the valley of his, and needs some o-rings replaced, and from the little bit of diesel all over, the dust really sticks to it...
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Temporarily Deactivated
Joined: Oct 2008
Posts: 613
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From: Ky
im shure its oil,if u were to look at the bottom of the valve cover go down about 1in and thats were its leaking.right were 2 parts come to gether.damn this is hard to explain.Aslo were is the best place to look for a a tuner and gauges?im on a buget of about 1grand.
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Thread Starter
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Temporarily Deactivated
Joined: Oct 2008
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From: Ky
i would like to get gauges first so i can check my boost to make shure every thing is workin right.
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FTE Legend
Joined: Aug 2004
Posts: 37,887
Likes: 20
From: North Central Rural Sask.
If its oil, then thats where my limited knowlege ends! Someone will be able to help ya out with that though 
Tuner, the ones most reccomended on here are dp, and TW, as for gauges, there are a whole bunch of them. Check out sites like diesel manor, itp diesel.
Tuner, the ones most reccomended on here are dp, and TW, as for gauges, there are a whole bunch of them. Check out sites like diesel manor, itp diesel.
