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post #1 of 22 Old 05-14-2011, 11:02 AM Thread Starter
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Horrible fuel economy

Ok so i have started to actually figure my MPG's lately. With only in town driving i am getting 10.5 empty, with about 75% town and 25% highway im getting about 14, and with 75% highway and 25% city im getting about 16. Now i know with the tires and lift the PO put on it will negatively affect my fuel economy but 10 mpg? List of mods etc are in my sig if you need any other info let me know. Any info/advice would help a lot thanks.

Also i have been running Lucas the last 3-4 tanks.

Tim

2001 F-250 Lariat CCSB, 4x4, ZF6 249k, 6.5" Procomp lift, 37" Toyo M/T's, 20" Fuel Hostages. PIS 160/30's, PHP Hydra, 6637, 4" exhaust, Tank mods, ISSPRO's, 08+ mirrors/tailgate/tail lights, M12000 winch.



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post #2 of 22 Old 05-14-2011, 11:18 AM
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hmmm speedo recalibrated for tires? And check your IC boots and uppipes for leaks...
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post #3 of 22 Old 05-14-2011, 11:37 AM Thread Starter
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I do not know if the PO ever had it recalibrate or not to be honest. I am thinking about replacing all of the boots because there is a lot of oil residue on the engine near them so i am thinking this would indicate leaks? Thanks for the reply.

Tim

2001 F-250 Lariat CCSB, 4x4, ZF6 249k, 6.5" Procomp lift, 37" Toyo M/T's, 20" Fuel Hostages. PIS 160/30's, PHP Hydra, 6637, 4" exhaust, Tank mods, ISSPRO's, 08+ mirrors/tailgate/tail lights, M12000 winch.



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post #4 of 22 Old 05-14-2011, 11:48 AM
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You can read my mods. Speedo calibrated with AutoEnginuity and verified with GPS. 14 MPG normally. I have seen 15 and almost 16 on long trips. I don't do any city driving but I bet it would be 6-8. Thing is so dang heavy! 8,300 pounds last time I checked with a full tank of fuel and my butt in the seat.

2001 F250 Lariat Crewcab, Automatic, 4X4

(Late '99 Regular Cab Work Truck)


6.5" Pro Comp Lift ~ Traction Bars ~ Son-Built Sliders ~ 16" Pro Comp Xtreme Wheels with 35" BFG TA KM2s
4" Banks Exh.-Power Elbow ~ Wicked Wheel ~ DIY AMSOIL EaAU4090 Intake ~ PHP 6 Pos Chip ~ LowDown LED Upgrade
Stage 1 Injectors ~ HankDaddy Mod. ~ BUILT TRANNY! 352 HP Shootin' for 375!
CAROLINA POWERSTROKE ASSOCIATION
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post #5 of 22 Old 05-14-2011, 12:02 PM
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For reasons I don't remember, quit using Lucas. Someone smarter than I will probably chime in later and give the technicalities as to why you shouldn't use it, but just from going off a very vague memory... the chemicals in Lucas cleaner don't break down all the way and can be very destructive towards your engine. It might even say on the bottle NOT TO USE on the 7.3 turbo diesel.... better check me on that.

Chris | 2005 F-250 RCSB | "Ranger - Turbo Diesel V8"
CED Compounds - Conventionals - Supporting Mods
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post #6 of 22 Old 05-14-2011, 03:00 PM Thread Starter
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Well i just checked (not very accurately) but close enough. My speedo is off by about 5 mph. So i think i am getting a little better mileage than i thought but i still would like to make it better. As for the Lucas i read the bottle and it does not state anything about the 7.3 unless i missed it. If anyone else has heard bad things about it i will stop the use of it. If i reverse the lift and put 285/75/16's and had the speedo calibrated how many MPG's do you guys think i might pick up? Thanks again guys for all the help, always appreciate it.

Tim

2001 F-250 Lariat CCSB, 4x4, ZF6 249k, 6.5" Procomp lift, 37" Toyo M/T's, 20" Fuel Hostages. PIS 160/30's, PHP Hydra, 6637, 4" exhaust, Tank mods, ISSPRO's, 08+ mirrors/tailgate/tail lights, M12000 winch.



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post #7 of 22 Old 05-14-2011, 03:21 PM
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Quote:
Originally Posted by Hank View Post
You can read my mods. Speedo calibrated with AutoEnginuity and verified with GPS. 14 MPG normally. I have seen 15 and almost 16 on long trips. I don't do any city driving but I bet it would be 6-8. Thing is so dang heavy! 8,300 pounds last time I checked with a full tank of fuel and my butt in the seat.
dang how much u weigh your truck weighs more than my dually



"BIG RIG" auto to zf6 swap 00 f-350 cclb dually,4in rough country lift, 6637, 7in mitre stacks, wicked wheel, foil delete,live tuned from bill at php,triple pod autometer gauges,315/75r16 kelly tsr's, 05 front end conversion, 2in spacers for rear,stage one swamps 175cc single shots,boost fooler, kennys dual disk clutch.
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post #8 of 22 Old 05-14-2011, 04:19 PM Thread Starter
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How much do these trucks weigh stock i never checked.

Tim

2001 F-250 Lariat CCSB, 4x4, ZF6 249k, 6.5" Procomp lift, 37" Toyo M/T's, 20" Fuel Hostages. PIS 160/30's, PHP Hydra, 6637, 4" exhaust, Tank mods, ISSPRO's, 08+ mirrors/tailgate/tail lights, M12000 winch.



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post #9 of 22 Old 05-14-2011, 04:29 PM
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Quote:
Originally Posted by 01Crewcab7.3 View Post
How much do these trucks weigh stock i never checked.
Not sure? I keep a lot of crap in mine. There may be 75 ft of logging chain and two binders in there now with a tool box full of tools, jacks, water, oil, ATF, etc. I always have everything I need except a full tank of fuel!

2001 F250 Lariat Crewcab, Automatic, 4X4

(Late '99 Regular Cab Work Truck)


6.5" Pro Comp Lift ~ Traction Bars ~ Son-Built Sliders ~ 16" Pro Comp Xtreme Wheels with 35" BFG TA KM2s
4" Banks Exh.-Power Elbow ~ Wicked Wheel ~ DIY AMSOIL EaAU4090 Intake ~ PHP 6 Pos Chip ~ LowDown LED Upgrade
Stage 1 Injectors ~ HankDaddy Mod. ~ BUILT TRANNY! 352 HP Shootin' for 375!
CAROLINA POWERSTROKE ASSOCIATION
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post #10 of 22 Old 05-14-2011, 04:51 PM Thread Starter
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Anyone ever tried this kit and if so how did it work out? Is there a better kit out there without breaking the bank?

Might help if i actually included the link...

http://www.dieselsite.com/index.asp?...ROD&ProdID=133

Tim

2001 F-250 Lariat CCSB, 4x4, ZF6 249k, 6.5" Procomp lift, 37" Toyo M/T's, 20" Fuel Hostages. PIS 160/30's, PHP Hydra, 6637, 4" exhaust, Tank mods, ISSPRO's, 08+ mirrors/tailgate/tail lights, M12000 winch.



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