MPG Good Bad Average - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 33 (permalink) Old 09-19-2010, 08:55 PM Thread Starter
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Smile MPG Good Bad Average

Got my truck 4 months ago, only thing done to this truck at this time is it has a straight piped exhaust. Went on my first long trip with the truck today, 400 miles today, filled truck up before i got on the highway and right after i got off of the highway, stayed at about 65-72 mph depending on traffic patterns. Found that my mpg ended up being 22 mpg, sounds good to me. However i wanted to know what are mayor upgrades i can do to get better mpg? I have a tool box in the bed and it is an 8ft bed, was thinking about a 6.5ft tonneau cover to cover the rest of the bed, but i doubt that would help me much? Any ideas? Realistically what will an SCT give me on economy mode?

I also wanted to make sure that 22mpg is good, what are some other people getting out there and what kind of mods have you done?

2004 F-350 SC LB 4x4
6spd manual transmission
Edge Juice w/attitude
Scangauge II by Linear Logic
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post #2 of 33 (permalink) Old 09-19-2010, 09:17 PM
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Re: MPG Good Bad Average

22 mpg is very good! The best I've ever gotten was just a bit over 18, keeping it on cruise, at 65mph. I hope that was figured with pencil and paper, and not that little computer in the overhead.

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post #3 of 33 (permalink) Old 09-19-2010, 11:47 PM Thread Starter
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Re: MPG Good Bad Average

Correct, well cell phone calculator but all the same, the funny thing is the truck does not have cruise control haha so this is all me. :)

Any ideas what i can do to drastically improve my mpg even more?

2004 F-350 SC LB 4x4
6spd manual transmission
Edge Juice w/attitude
Scangauge II by Linear Logic
Straight pipe exhaust
Westin Bull Bar
Lights
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post #4 of 33 (permalink) Old 09-20-2010, 02:36 AM
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Re: MPG Good Bad Average

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Originally Posted by DieselStroke View Post
Correct, well cell phone calculator but all the same, the funny thing is the truck does not have cruise control haha so this is all me. :)

Any ideas what i can do to drastically improve my mpg even more?
Chop the cab 10" to reduce wind drag! No, seriously! 22 MPGs is pretty darn good for that rig! Mine gets 11 city, 13 hwy!
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post #5 of 33 (permalink) Old 09-21-2010, 10:30 PM
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Re: MPG Good Bad Average

Yeah, a tonneau will help.

In my experience, two things work: gearing and aerodynamics. Everything else is a waste of money and time.

Most diesel pickups are wildly over-geared.

A pickup is aerodynamically somewhere between a brick and an Amish barn. Big gains can be made here. Work on bed aerodynamics first.

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post #6 of 33 (permalink) Old 09-21-2010, 11:12 PM Thread Starter
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Re: MPG Good Bad Average

Now personally here is my thought, not necessary gear ratio but a 7th gear would be perfect, i know there is an add on that you can buy to have a high and low gear for each one, anyone tried this? Just imagine 70mph not at 2000 rpm but rather at 1200rpm

2004 F-350 SC LB 4x4
6spd manual transmission
Edge Juice w/attitude
Scangauge II by Linear Logic
Straight pipe exhaust
Westin Bull Bar
Lights
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post #7 of 33 (permalink) Old 09-21-2010, 11:25 PM
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Re: MPG Good Bad Average

The Gear vendors might help, but you can only get so good, i ran the banks six gun and gain 1 mpg, would get 12.1 running from iowa to colorado and after the chip got 13.3, i run 85 90 with 35s, made that run many times stock and chiped. The gear vendors would be good if you tow alot or heavy, but if you don't tow heavy i would change the gears to a 3.55. or 3.33 but you want to keep the rpms around 1700 for best mileage.
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post #8 of 33 (permalink) Old 09-21-2010, 11:29 PM
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Re: MPG Good Bad Average

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Originally Posted by DieselStroke View Post
Now personally here is my thought, not necessary gear ratio but a 7th gear would be perfect, i know there is an add on that you can buy to have a high and low gear for each one, anyone tried this? Just imagine 70mph not at 2000 rpm but rather at 1200rpm

I'm pretty sure Dave Whitmer has a GV (Gear Vendors Overdrive) At least I think I remember reading that he was putting one in..

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post #9 of 33 (permalink) Old 09-22-2010, 01:22 AM
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Re: MPG Good Bad Average

lol read a few articles on gear vendor was all jacked up and called was going to order one got to the price and BAM! $3500 almost laughed at the guy on the phone said thanks and hung up
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post #10 of 33 (permalink) Old 09-22-2010, 01:30 AM
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Re: MPG Good Bad Average

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BAM! $3500 almost laughed at the guy on the phone said thanks and hung up
yea I agree, there really proud of there product.

1999.5 F 350 crew cab dually 4x4, 330,000mi, TS 6 position, Edge monitor, Itp regulated return, sinister boost inhilator, ccv mod, afe stage ll, s475, 300cc 200% hybrids, Adrenaline HPOP, Airdog 150, Jasper class 1 full built tranny, triple disc Torque converter, AIH delete, 4" exhaust.
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