MPG - Ford Powerstroke Diesel Forum

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 20 Old 12-23-2007, 01:29 AM Thread Starter
Member
 
Join Date: Oct 2007
Location: Bryson City North Carolina
Posts: 61
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Question MPG

My 02 is a F350, crewcab, 4x4, dually, 6 speed with the 4:10 gears. It has 32K on the odometer. It consistantly gets 15 MPG towing a 7K trailer, and 20MPG empty at 60 to 65 MPH. At 75MPH it drops to 17.5MPG. It just went out of warrenty because of age. I am very apprensive about mods, because I do not want to have problems with dependability, but here is the question. Is there a mod that will honestly get a few more MPG's out of this set-up without taking a chance on messing up something, or should I just be happy with the MPG that I am getting? My sister has an 89 Dodge Cummins D250 2wd, standard cab, 3:55 gears, gets 27 MPG. Not an apples to oranges comparison, but wondering anyway? And yes, I do drive like an old man, but then I am old, so it must be OK. Thanks in advance.
2002F3504X4 is offline  
post #2 of 20 Old 12-23-2007, 02:42 AM
FJuanfiddy mod


 
Dave's Avatar
 
Join Date: Nov 2006
Location: Trempealeau, WI
Posts: 31,826
Thanks: 132
Thanked 186 Times in 166 Posts
Mentioned: 0 Post(s)
Quoted: 7 Post(s)
Feedback Score: 0 reviews
Send a message via Yahoo to Dave
An intake and exhaust will squeeze a little more MPG out of it also a chip with a good econo tune

Email: Dave@powerstroke.org
2011 F150 Ecoboost Crew cab lariat. Custom tunes from KEM and 5Star, and Unleashed
2012 F150 Crew Cab Ecoboost stock for now-Totaled March 12 2015
2006 F250 ECSB Lariat 4x4

Leveling kit, 315/70/17 Kelly TSRs on Method race wheels
ARP studs and OEM gaskets done by Renegade Diesel
ECM and Atlas 40 FICM tuned by Bill at PHP SCT tunes by Truck Source Diesel. Gearhead, Innovative, Wildman and Tyrant diesel
Flowmaster/MBRP Hybrid Exhaust
Edge Insight CTS
Coolant filter
Bulletproof diesel FICM EGR Delete, Oil Cooler and Water Pump, and Light bar.
Dually LED lights from Stealth Automotive/Xpedition Outfitters
No Limit Fab 6.0 Cold Air Intake
http://www.bulletproofdiesel.com/default.asp
http://nolimitfabrication.com/
Dave is offline  
post #3 of 20 Old 12-23-2007, 03:17 AM
Member/MARINE
 
rajharley's Avatar
 
Join Date: Apr 2006
Location: Westerville, Ohio
Posts: 992
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Send a message via Yahoo to rajharley
I would leave yours alone if you are getting that kind of mileage. Must be the difference between the 6-Speed and the automatic. My automatic get no better than 15 MPG and except for the automatic our trucks are the same. well except that mine has 157k on the ticker.

02 F350 XLT DRW CC 6X6, ZOODAD MOD, DUAL PRESS RELIEF VALVE, 4" TURBO BACK EXHAUST NO KITTY NO MUFF, TS 6 POS CHIP, HIGH PRESS OIL LINE X-OVER, AIRAID THROTTLE BODY SPACER, DIY INTAKE NAPA 6637, PYRO, BOOST, TRANS GAUGES ON THE PILLAR, BANKS TRANS COMMANDER W/TRANS SHIFT KIT, BILLET TORQUE CONVERTER, WASTEGATE DELETE W/MAP FOOLER, SKYJACKER SHOCKS & DUAL STEERING STABILIZER, REDNECK CELL PHONE, RANCH HAND BUMPER, RECON BIG RIG, FENDER AND CAB LIGHTS, AND DIAMOND PLATE ACCESORIES.
rajharley is offline  
post #4 of 20 Old 12-23-2007, 04:09 AM
Member
 
jaawalke's Avatar
 
Join Date: Sep 2006
Location: Athol Massachussetts
Posts: 50
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Thats pretty good milage considering you are running a 4:10 rear.It must be the 6 speed .My 04 with the automatic doesn't get that kind of milage.

2004 Super Duty 6.0 crewcab long wheelbase dually
4:10 rear 5 spd auto
Banks intercooler,intake and exhaust
ARP Head Studs.new heads and gaskets
SCT flash control
egr delete
blue fuel pressure spring
galaxy cb with whip antenna
I pull a 32 ft.camper trailer
jaawalke is offline  
post #5 of 20 Old 12-23-2007, 04:31 AM
Compression Ignition Addict
 
todd's Avatar
 
Join Date: Oct 2007
Location: frazeysburg ohio
Posts: 803
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
ive yet to see over 14 out of mine im really considering going to 3.73s if your getting that milage and arent wanting more power i say leave it i didnt think 4.10s could hit 20mpg

traded it for an 06 dodge sorry
todd is offline  
post #6 of 20 Old 12-23-2007, 11:30 AM
Compression Ignition Addict
 
adfields's Avatar
 
Join Date: Nov 2007
Location: Palmer Alaska
Posts: 683
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Thats just a little better than what I get, about 18.5 with my plow on the front pushing all that air. I have a auto and still getting this. Trans is built, exhaust is stock with cad delete, and a home made PVC pipe intake with K&N filter. Other than that the drive train is stock 95 F350 with a 76 club cab on top, witch is less efficient than the 95 body I would think.

Open up the intake and exhaust all you can live with sound wise, you should see an improvement and it sure wont drop. Then try a good economy tuned chip, if that don't work you can just take it out. As far as problems with dependability, you would need to jack the power way up and drive like a 16 year old to damage a 7.3.

ANDY

My baby is a one of a kind.
1977 I bought a new 76 F150 club cab.
Sitting on a 84 F350 6.9 4X4 chassis
With all the drive train and goodies from a 95 4X4 4door PSD.
Nothing stock left on her and not a nut, bolt, hose, or wire on there that I didn't put where it is.

The Wifes Ride:
2002 Excursion Limited 7.3 PSD

Themo King/Mikuni coolant heaters on both to keep things toasty without idling.
adfields is offline  
post #7 of 20 Old 12-23-2007, 07:49 PM Thread Starter
Member
 
Join Date: Oct 2007
Location: Bryson City North Carolina
Posts: 61
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Thanks you' all. Sounds like air flow is the key to increased economy on these rigs. It also sounds like I have nothing to complain about either, since the truck is already doing pretty well in the MPG department. The 6 speed may make a difference, not sure. 5th gear is direct, and the engine winds up pretty fast. The overdrive is pretty steep. She tach's 2350 RPM at 75 MPH with the stock tires. We live in NC and they are getting ready to start the tail pipe testing for annual inspections, so it will probably be wise to keep the cat intact. I think that I will try the air box upgrade offered by Ford first, and see what happens, since this is a very simple, non invasive, and fairly inexpensive mod. Maybe a good cat-back system might be the second thing to try.

Adfields, your truck sounds like it is one unique machine. That's cool to have a one of a kind truck! I thought I had done something dropping a 6 cylinder Cummins into a 87 G-30 Silverado Crewcab Dually, 4x4, with an SM-465 4 speed, a US Gear 2 speed 20% spliter, and 4:11 with an air locker in the rear and a stock Dana 80 up front with manual lockers, but I think that you have topped me!
2002F3504X4 is offline  
post #8 of 20 Old 12-23-2007, 07:52 PM
KVFD
 
redstroker_2002's Avatar
 
Join Date: Nov 2007
Location: Kearney, Nebraska
Posts: 4,061
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Send a message via MSN to redstroker_2002
ur lucky 2 get that out of that!

-Josh

2008 2500 LMM- Deleted, Blocked, Fueled, & Tuned by:
redstroker_2002 is offline  
post #9 of 20 Old 12-23-2007, 10:29 PM
Compression Ignition Addict
 
adfields's Avatar
 
Join Date: Nov 2007
Location: Palmer Alaska
Posts: 683
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by 2002F3504X4 View Post
Adfields, your truck sounds like it is one unique machine. That's cool to have a one of a kind truck! I thought I had done something dropping a 6 cylinder Cummins into a 87 G-30 Silverado Crewcab Dually, 4x4, with an SM-465 4 speed, a US Gear 2 speed 20% spliter, and 4:11 with an air locker in the rear and a stock Dana 80 up front with manual lockers, but I think that you have topped me!
Well thanks, after over 30 years with it I love it. It's got a home as long as I do.

2350@75, is that in over drive? I am around 1650@75 but I run on the cruse control set at 70 most of the time and that is just over 1500rpm. I think that is the biggest reason I get the mileage I do out of it. When I had the 6.9 and 4 speed stick in it 76 was all she would go tacked out and that only gave me about 10 mpg. 14 mpg was the best I ever got with that set up and it was great as 8.5 mpg is the best the original 460 ever gave me, but man was that 460 fun to drive!

ANDY

My baby is a one of a kind.
1977 I bought a new 76 F150 club cab.
Sitting on a 84 F350 6.9 4X4 chassis
With all the drive train and goodies from a 95 4X4 4door PSD.
Nothing stock left on her and not a nut, bolt, hose, or wire on there that I didn't put where it is.

The Wifes Ride:
2002 Excursion Limited 7.3 PSD

Themo King/Mikuni coolant heaters on both to keep things toasty without idling.
adfields is offline  
post #10 of 20 Old 12-23-2007, 10:30 PM
KVFD
 
redstroker_2002's Avatar
 
Join Date: Nov 2007
Location: Kearney, Nebraska
Posts: 4,061
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Send a message via MSN to redstroker_2002
i wish i got that good of mileage

-Josh

2008 2500 LMM- Deleted, Blocked, Fueled, & Tuned by:
redstroker_2002 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome