100 miles/tank ?

eightyeight · Aug 3, 2006

So I was able to pick up my 88 just a couple days ago. Judging by how much gas I've used so far, it looks like I'm goign to get about 100 miles to the tank. Even for a 5.0 that seems a bit low. Is there any problems I should be looking for or is this about right for an '88 5.0 ?

Daggar · Aug 3, 2006

I get just over 100 miles before my fuel low light comes on. That's between 9 to 10 gallons when I fill it up so I get between 10 and 11 miles per gallon on average during strictly in-town driving.

On the highway, I get between 20 and 25 MPG depending on how much I use the cruise control.

Edit: I should also note that this is on a blower car.

Strype · Aug 3, 2006

Yeah- when I use the a/c all week I get about 110-150 or less

88 Fox GT · Aug 3, 2006

I get 230-250 miles to the tank on mine if I take it fairly easy on it.

That's only like 11 gallons too, because that's all it will hold.

bdazzgt · Aug 3, 2006

ACtually the tank is a 15 gallons i would almost bet the gauge is off. When mine is on E i can put in 9 gallons so there is six gallons of play

795.0pacecar · Aug 3, 2006

I have an 88 stang tank in my car and I get 290-300 miles to a tank. When my autometer gauge says empty I normally have about 2 or 3 gallons left.

Sicarius428 · Aug 3, 2006

I get about 200 miles per tank on mine with a little spirited onramp runs. Something definately doesn't sound right.
Kevin

mustangjoe87 · Aug 3, 2006

Running mine hard the whole tank I get about 250-275. I dont know what it gets when your taking it easy on it, I dont think I can drive that car without the pedal down.

90_Red_LX · Aug 3, 2006

I don't see how you guys get that good of gas mileage unless it's a lot of highway mileage. My car doesn't see much highway time, but it's mostly stock and a tuneup a few months ago. Right now it's averaging 15ish being driven hard.

795.0pacecar · Aug 3, 2006

Im getting on average 22-23 mpg with a combo of city and highway driving.

1988WHTGT · Aug 3, 2006

I'm getting great mileage b/c my tranny is broken, ha...and its my only car....my legs are getting tired

HISSIN50 · Aug 3, 2006

Welcome to the boards!

In reading your first post, I'd simply go fill up and actually calculate the milage. The stock gauge is too inaccurate to interpolate.

I would run codes.

Good luck.

DeVus1 · Aug 3, 2006

My 03 Cobra gets better gas mileage than that. I would check everything related to the fuel system, including pressure.

R2D2 · Aug 4, 2006

dont feel bad my 557 inch got around 6mpg

eighty8 · Aug 4, 2006

eightyeight said:
So I was able to pick up my 88 just a couple days ago. Judging by how much gas I've used so far, it looks like I'm goign to get about 100 miles to the tank. Even for a 5.0 that seems a bit low. Is there any problems I should be looking for or is this about right for an '88 5.0 ?

I am getting about 24 mpg out of my 88 GT. I fill the tank, use most of it before I fuel up again then check my gas milage. I thing most of the time I get between 225 and 275 miles out of a tank depending on how I drive. Cool user name by the way.

865.0HO · Aug 4, 2006

I've got as much as 330 miles on a tank of gas, combo city and highway. I average about 260-300.

If I drive sensibly I average about 22-23mpg in my GT.

88 Fox GT · Aug 5, 2006

bdazzgt said:
ACtually the tank is a 15 gallons i would almost bet the gauge is off. When mine is on E i can put in 9 gallons so there is six gallons of play

Hmm, mine must be off then. Both Fox bodies I've owned have only held 11-12 gallons max when the needle was on E and the gas light was on.

iwashmycar · Aug 5, 2006

Mine gets about 300 to the tank with the 15.9 gallon tank. When i did a lot of highway driving the part week i got above 350 miles to the tank, with the A/C on lol

ninety15.0 · Aug 5, 2006

On the highway i get about 225 miles out of a "tank" and at that point the gauge is at about 1/4 tank. When i go to fill it up i can only get about 9 gallons into it. Thats 25mpg....averaging about 75-80 with 3.73's. Around town is a different story i get about 14mpg. How hard are you driving it. Do u have a vac gauge!!!??? best thing i ever purchased...it really lets you know what works best for your car. And generally short shifting a 5.0 is the worst thing to get good milage! good luck

DW5.0L · Aug 5, 2006

Before the rebuild and with the 2.73's, I could get up 350 miles on a tank on the highway cruising at 80. Now its more like 230 miles with 1.5 gallons remaining. The lowest MPG that I have had so far was 16 for combined city/hwy driving.

If your only getting 100 miles to a tank, your either driving really hard, highly modified, or there is something wrong.

100 miles/tank ?

eightyeight

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Daggar

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Strype

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bdazzgt

I had to jerk off the cable to get it to stop.

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