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fuel milage

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Old Mar 29, 2009 | 07:34 PM
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tha-yoter's Avatar
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fuel milage

just curious about how many miles to the gallon should i be getting in my 93 ford f-350 with the 7.3 idi and the fuel turned just a hair, and with stock intake and exhaust? because right now im averageing about 8-9 miles to the gallon, the previous owner said it should be getting better than that? if thats a little low, any suggestions on how to increase fuel milage?
 
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Old Mar 29, 2009 | 09:35 PM
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seems low to me, should get 12-14 if is in decent tune. Some on this forum get really good milage, others like me don't do so good. A lot has to do with driving habits, but a 460 gasser will get 8-9 and you would have more power.
 
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Old Mar 29, 2009 | 10:06 PM
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Originally Posted by harleyjohn45
seems low to me, should get 12-14 if is in decent tune. Some on this forum get really good milage, others like me don't do so good. A lot has to do with driving habits, but a 460 gasser will get 8-9 and you would have more power.
I'd say this is REALISTIC if it's mostly city driving.

I'd say if you are a "normal" driver you should get 13-17.
I get 14-16 in mixed driving in my '94 and 16-17 in my '97.
 
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Old Mar 29, 2009 | 10:14 PM
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When my truck was running I got about 20 highway and 12 city. I would do a litle better on Cali diesel than the stuff they call diesel here.

How much smoke are you getting? And how old is your muffler? I picked up a bunch of power and 3 MPG when my plugged muffler dissapeered.
 
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Old Mar 30, 2009 | 08:04 AM
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before i put my 6in on, 40's and turned up fuel pump i was gettin close to 20's round town and in the 20's hyw thats with close to 300,000 miles
 
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Old Mar 30, 2009 | 10:43 AM
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Originally Posted by Dodge/Cummins
I'd say this is REALISTIC if it's mostly city driving.
No way, I do about 90% stop-and-go residential street driving now and I've never ever seen less than 12mpg.
I'd say if you are a "normal" driver you should get 13-17.
That sounds about right now. My freeway fuel economy is in the 18-20mpg range consistently, moving with the big rigs at 60mph or so.

Tha-yoter, check your air filter, and also the muffler like George D suggested - both can be pretty decent flow restrictions, and that don't do you any good in the fuel economy department. Also, is your truck a 4x4 with big tires, and do you have the front axle hubs locked?
 
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Old Mar 30, 2009 | 10:49 AM
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i can get close to 20, if i want to, most the time i get 14-16, and if im really hammering on it or blowing smoke i can start getting closer to 10-12.
 
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Old Apr 1, 2009 | 06:28 PM
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well i have a stock muffler i assume, and i checked my air filter the other day and its pretty dirty but im fixin to modify me some sort of cold air intake so i dont want go spend money on that right now when im fixin to put a k&n filter on it. my truck is just 2 wheel drive, sorry i failed to mention that. thanks for the hints guys.
 
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Old Apr 1, 2009 | 06:35 PM
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i forgot that george d. asked me how much smoke i was getting, its not a whole lot unless i load it up in 4th or 5th gear, or if i get on it real hard. also what could cause my fuel and amp gage to stop working? thats the only 2 that wont work and this just started the other day.
 
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