450 fuel mileage help - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 18 (permalink) Old 03-02-2009, 02:30 AM Thread Starter
 
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450 fuel mileage help

I have a F450 with a flatbed that is used in wrecking service. it weights about 15000 pounds. THe truck is has a 7.3 auto 4x4. I an getting 10 miles to the gallon stock. added a superchip and mileage dropped to 8. Need some advice how to get better mileage..and hold off on the lose weight comments.. nothing else to cut off. also the superchip makes it sound like it wants to die when i come to a stop ( maybe a bad tuner)?
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post #2 of 18 (permalink) Old 03-02-2009, 02:32 AM
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Re: 450 fuel mileage help

Drop the Superchit and get some custom tunes.

2003 F350 EC/LB 7.3
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post #3 of 18 (permalink) Old 03-02-2009, 04:44 AM
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Re: 450 fuel mileage help

Let it breath(intake and exhaust), and check out one of the tuners to see what they can do for you.

Dave

'08 F250 6.4/Torqshift Spartan 310EL, Flo-Pro 4", White_monster air intake, RCD 4-link, RS9000's 584/1330
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post #4 of 18 (permalink) Old 03-02-2009, 05:08 AM
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Re: 450 fuel mileage help

wonder what adrew gets in his 550

Early 99 f350 4x4 crew cab, auto. pmt2 pcm
2001 cup holder ,T500, MAX AC ASSIST AC mod, Diy Twin tymar, TS chip, Powerslots & Hawk pads, ford AIC, ..... with big fat want to list.
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post #5 of 18 (permalink) Old 03-02-2009, 05:29 AM
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Re: 450 fuel mileage help

Intake and exhaust, gauges, then some Stage 1 singles 175/143, and Swamps programing.

Anthony

2002 F-350 SRW 4x4 Lariat Crew Cab, Auto, MBRP 4" T409 Turbo back, AFE Stage 2, Isspro gauges (Pyro, Boost, Trans), BTS VB, DP F-5
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post #6 of 18 (permalink) Old 03-02-2009, 05:30 AM
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Re: 450 fuel mileage help

I get around 12 mpg on the hwy staying around 65-70

Not sure on the city though I haven't been keeping track lately.

2000 F250 EX LB 4x4 XLT
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post #7 of 18 (permalink) Old 03-02-2009, 06:08 AM
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Re: 450 fuel mileage help

I get 11 mpg towing @ 25,000 lbs and get 15 on the freeway driving hard , you need to call DP Tuner for a good chip and put in an intake and exhaust too.

Gene


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post #8 of 18 (permalink) Old 03-02-2009, 08:17 AM Thread Starter
 
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Re: 450 fuel mileage help

it has the exhaust already open and a DIY intake, so i am taking it the superchip is the problem. who should i call for a custom tuner? name, phone number?
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post #9 of 18 (permalink) Old 03-02-2009, 08:19 AM
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Re: 450 fuel mileage help

http://dp-tuner.com/

2000 F250 EX LB 4x4 XLT
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post #10 of 18 (permalink) Old 03-02-2009, 04:15 PM
 
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Re: 450 fuel mileage help

definatly dp-tuner man.. I was getting 300 miles to a tank in city driving on stock and i tried my 140tune for a week and i got 354miles to the tank. Thats driving with some sense though. highway i was getting around 460miles 2 the tank. i was impressed. getting from NC to central PA on one tank helps alot.
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