fuel millage
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New User
Joined: Nov 2003
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fuel millage
I am just looking to get the best millage out of my 1995 f250 7.3 turbo powerstroke I tryed the new supertunner and the thing really did not do a lot for me and the guy who sells them said the same thing I was going to buy one and he offered to let me test drive it he installed it in my truck and we drove it with three diff settings so I am looking for help from here the trans was rebuilt for pulling other than that it is all stock thanks for your time 
Fleet Mechanic
Joined: Aug 2003
Posts: 1,780
Likes: 98
From: Phoenix, AZ
I will summarize most responses;
1. Larger exhaust
2. Increased air intake flow
3. Cleaning and maintaining the fuel and air filter(s)
4. All driving to be below the 2000 RPM level
5. Adding a Cetane booster
6. Performance chip
6. No hot rodding or jackrabbit starts
7. 3.73 gears
8. 2wd
9. Proper tire inflation
10. Don't pull anything
If I gained the claimed 1-2 miles per gallon that each of the above promised, I should be getting about 35 mpg. by now.............lolololol
1. Larger exhaust
2. Increased air intake flow
3. Cleaning and maintaining the fuel and air filter(s)
4. All driving to be below the 2000 RPM level
5. Adding a Cetane booster
6. Performance chip
6. No hot rodding or jackrabbit starts
7. 3.73 gears
8. 2wd
9. Proper tire inflation
10. Don't pull anything
If I gained the claimed 1-2 miles per gallon that each of the above promised, I should be getting about 35 mpg. by now.............lolololol
Fleet Mechanic
Joined: Aug 2003
Posts: 1,780
Likes: 98
From: Phoenix, AZ
1. If you keep your tuner and the tuner programs, get gauges
first to check EGT's, boost, tanny temp.
2. Good intake filter and assembly
3. 4" exhaust
4. Keep fuel filter and air filters clean
5. Cetane booster
(I already have a factory inter-cooler so I cannot comment on any inter-cooler improvements)
first to check EGT's, boost, tanny temp.
2. Good intake filter and assembly
3. 4" exhaust
4. Keep fuel filter and air filters clean
5. Cetane booster
(I already have a factory inter-cooler so I cannot comment on any inter-cooler improvements)
Postmaster
Joined: Feb 2002
Posts: 2,773
Likes: 0
From: Bonney Lake, WA
I've done a lot to my truck, primarily for the increase in power, though many of the components claim that I should see an improvement in mileage. The fact is, my mileage hasn't changed a bit, but the truck is a lot more fun to drive. As a matter of fact, adding the reverse shackle kit actually hurt my freeway mileage by about 1mpg, since I now catch more wind.
As has been stated earlier, keeping your oil changed, your filters clean, your tires inflated properly, and keeping your rpms below 2000 will optimize what you've got.
As has been stated earlier, keeping your oil changed, your filters clean, your tires inflated properly, and keeping your rpms below 2000 will optimize what you've got.
Fleet Mechanic
Joined: Aug 2003
Posts: 1,780
Likes: 98
From: Phoenix, AZ
I agree Zilla,
Lots of claims on mileage for all these "performance" upgrades but ultimately no change in MPG.
I still average overall 16-17 MTG.
That's "More Thrills Per Gallon!"
Now about that reverse shackle kit.............hmmmmmmmmmmm
Lots of claims on mileage for all these "performance" upgrades but ultimately no change in MPG.
I still average overall 16-17 MTG.
That's "More Thrills Per Gallon!"
Now about that reverse shackle kit.............hmmmmmmmmmmm
Senior User
Joined: May 2003
Posts: 107
Likes: 0
From: Alberta Canada
mileage
After reading many posts on mileage I think I am one lucky psd owner. I drive a 97 f350 crewcab,4x4, longbox, psd with 355 gears and a auto trans. Empty(no trailer or load in the box) I get 25mpg on the highway. Pulling Quads or sleds I get 20 mpg and with my 17ft old and heavy camping trailer and gear I will get 16 to 18 mpg. My truck is stock all the way through. I bought it used this spring with 267000 km's on it. I used to drive a 97 f150, 5.4litre engine. Empty I would get 17 to 18 mpg. I am grinning all the way to the pump when I drive my psd and diesel costs at least 10 cents cheaper.
Ed
Ed
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Junior User
Joined: Sep 2003
Posts: 57
Likes: 0
From: MARYLAND
I DO BACK FLIPS WHEN I GET UP AROUND 16MPG IM JUST GOING TO BE SATISFIED WITH THE 15-16 RANGE.
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Junior User
Joined: Jun 2003
Posts: 70
Likes: 0
From: Highlands Ranch, CO
It's amazing how this happens, but when I test drove my 2000 CC (two different times), the trip computer was showing an average of 18 mpg city/hwy mix (~20 miles). After I bought the truck, the best I could get was 18 on long hwy trips with 15 in the city. Then I put on a Tymar intake, which I like, and now I get ~13 city. I understand that the increased airflow requires incresed fuel for the ratio to remain the same, but I did not expect the 2mpg decrese from that one upgrade. As others have posted, you have to make the choice of performance or economy -- there is no way to achieve both.
FYI - At 15,000 miles per year and buying deisel for $1.45/gal, the increase in fuel cost for 13mpg vs. 15mpg is $223. At 12,000 miles per year and all other factors remaining the same, the increase drops to $178. Just for yucks, I calculated the difference at 15,000 miles and 13mpg vs. 18mpg -- $465!
For these kind of cost savings, I would gladly pay for upgrades that actually work to improve mileage, but it appears that most of them are myths. I would love to hear back from anyone who made some upgrades and can actually tell me from thier own experience what the mpg increase was. Thanks
FYI - At 15,000 miles per year and buying deisel for $1.45/gal, the increase in fuel cost for 13mpg vs. 15mpg is $223. At 12,000 miles per year and all other factors remaining the same, the increase drops to $178. Just for yucks, I calculated the difference at 15,000 miles and 13mpg vs. 18mpg -- $465!
For these kind of cost savings, I would gladly pay for upgrades that actually work to improve mileage, but it appears that most of them are myths. I would love to hear back from anyone who made some upgrades and can actually tell me from thier own experience what the mpg increase was. Thanks
Fleet Mechanic
Joined: Aug 2003
Posts: 1,780
Likes: 98
From: Phoenix, AZ
I don't believe the trip computer is the most accurate way to calculate the mileage. I have read several threads on inaccurate calculations by trip computers on mpg's.
Just check it the old fashioned way.
Divide miles driven by gallons put in.
Just check it the old fashioned way.
Divide miles driven by gallons put in.
