7.3 fuel mileage
Thread Starter
|
Freshman User
Joined: Mar 2006
Posts: 41
Likes: 0
7.3 fuel mileage
Im looking at a 1989 Ford F-350 extended cab, long bed dually, 2wd, 5 speed manual, and i think a 7.3 diesel. What type of fuel mileage should i suspect from this truck. I like the truck but if its going to kill me one fuel cost. Right know i filled up my suburban (sorry its not a ford but it does good on mileage its a 6.2) diesel was at 2.39 a gallon in town and like 2.59 by the interstate.
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
Welcome to FTE,
Fuel mileage is real dependant on how you drive, what kind of driving you are doing, how much you are hauling or towing.
The ZF 5 overdrive transmission will help the mileage a lot.
2.699 is as cheap as you can find fuel where I am, lots of places are higher.
Fuel mileage is real dependant on how you drive, what kind of driving you are doing, how much you are hauling or towing.
The ZF 5 overdrive transmission will help the mileage a lot.
2.699 is as cheap as you can find fuel where I am, lots of places are higher.
Senior User
Joined: Feb 2006
Posts: 385
Likes: 0
From: Salem Oregon
I have an F-250 XLT Lariet Diesel with a 7.3 non-turbo with a 5 speed manual. If I am driving pure highway with little or no load I can get about 20-22 miles per gallon. City/Hwy will get me about 18 miles per gallon and when towing a fully to overloaded trailer (28 cubic yards+) I get about 10-12 miles per gallon. Hope this helps.
Fleet Mechanic
Joined: Sep 2005
Posts: 1,509
Likes: 3
From: Ladner, British Columbia
The ZF5 with the 3.55 rear end and turbo help the milage a lot. I get about 18 mpg city on my 93 F250.
My 91 F350 crewcab only gets about 14 mpg city, largely due to it being an automatic, the 4.10 gears don't help much either.
Both use the same 7.3l engines.
My 91 F350 crewcab only gets about 14 mpg city, largely due to it being an automatic, the 4.10 gears don't help much either.
Both use the same 7.3l engines.
Thread Starter
|
Freshman User
Joined: Mar 2006
Posts: 41
Likes: 0
Thats about like here. Some places diesel is same, more, or less than gas. Its crazy. I do not know what the rear gear on the truck is because i havent looked at it that close to find out.
Trending Topics
New User
Joined: Sep 2002
Posts: 17
Likes: 0
From: Salt Lake, HI
feel lucky, hawaii is $3.45 a gallon. Lucky I get really good mileage at 20-22 a gallon, before e4od blew out on me, again.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
Senior User
Joined: Feb 2006
Posts: 385
Likes: 0
From: Salem Oregon
Diesel prices jumped in southern Oregon awile ago, price is about 2.86 a gallon and before that about 2.70, miss the good old 1.60 a gallon. Price does not mean much to me currently, I finally put my truck out of service with bad plugs, controller, too small batt. for cold weather, and possibly something wrong with fuel system. Once back running, its back trying to beat the pump.
New User
Joined: Oct 2004
Posts: 5
Likes: 0
My 93,F350 dually IDI wo turbo/auto and 4.10's gets 14 to 18 empty and 11 pulling a 28 foot enclosed race car trailer w/2800 lb door car. I put 1,400,000 mile on this truck pulling RV trailers to 12,000 lbs and averaged 11.75 miles both ways over all those trips east and west coast, north to Alaska and south to Mexico.
New User
Joined: Mar 2006
Posts: 11
Likes: 0
its got 31K on it now... runs good except the MPG suck and it feels like it should have more pedal...
hook a camper to it and sure it'll pull 60-70 all day... but thats on the floor at 6 mpg... at 2500 rpm...
i cant even get it to 3K rpm.. even unloaded... starting o think the IP needs turned up or something...
and even at WOT on the floor ... no black smoke at all..
hook a camper to it and sure it'll pull 60-70 all day... but thats on the floor at 6 mpg... at 2500 rpm...
i cant even get it to 3K rpm.. even unloaded... starting o think the IP needs turned up or something...
and even at WOT on the floor ... no black smoke at all..
Senior User
Joined: Aug 2004
Posts: 167
Likes: 3
Sureshot, you need to have that pump looked at. My '84 6.9L is NA and and I was getting 18mpg when i had 4.10's. You said its a new motor, did you have the injector pump timed? I know if it's off just alittle it will make the whole motor feel sluggish. Do you have gauges? What are you pyro and boost readings with and w/o a load. Is your turbo wastegated or nonwastegated? Have you ever adjusted the wastegate rod?
If you tell us some more about your setup I'd bet someone on here can cure that mileage problem.
Bowedup
If you tell us some more about your setup I'd bet someone on here can cure that mileage problem.
Bowedup