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Car Forum / Ford / Ford Mustang / February 2006

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Fuel consumption of 5.0 ltr

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GBR - 20 Feb 2006 04:43 GMT
Hi guys, wondering if someone could tell me a rough m/gallon figure for a
5.0 litre mustang motor. Not any special variant just the basic 5.0 fuel
injected motor.

Thanks

Gary
Blue Gator - 20 Feb 2006 05:36 GMT
> Hi guys, wondering if someone could tell me a rough m/gallon figure for a
> 5.0 litre mustang motor. Not any special variant just the basic 5.0 fuel
[quoted text clipped - 3 lines]
>
> Gary

1989 LX hatchback automatic, about 26mpg city/hwy when new, 18mpg after
changing to 3.73 gears and 175,000 miles
Big Al - 20 Feb 2006 07:12 GMT
> > Hi guys, wondering if someone could tell me a rough m/gallon figure for a
> > 5.0 litre mustang motor. Not any special variant just the basic 5.0 fuel
[quoted text clipped - 6 lines]
> 1989 LX hatchback automatic, about 26mpg city/hwy when new, 18mpg after
> changing to 3.73 gears and 175,000 miles

My 87 and 89 LX's got around 25 on the highway and about 19 in the city.
They were both 5 speeds. On the highway to me is 80 MPH.

Al
Ritz - 20 Feb 2006 12:49 GMT
>>> Hi guys, wondering if someone could tell me a rough m/gallon figure for
> a
[quoted text clipped - 10 lines]
> My 87 and 89 LX's got around 25 on the highway and about 19 in the city.
> They were both 5 speeds. On the highway to me is 80 MPH.

My 89 LX notchback w/5speed and bone stock 3.08 gears got about 18-19mpg
around town and 25mpg on the highway.  It also ran a 13.9 in the 1/4 the
one time I took it to the strip.  8-)

Cheers,
Big Al - 20 Feb 2006 14:45 GMT
> >>> Hi guys, wondering if someone could tell me a rough m/gallon figure for
> > a
[quoted text clipped - 16 lines]
>
> Cheers,

5 speed 89 LX's have 2.73 gears, right?

Al
Ritz - 21 Feb 2006 00:14 GMT
>>>>> Hi guys, wondering if someone could tell me a rough m/gallon figure
> for
[quoted text clipped - 20 lines]
>
> 5 speed 89 LX's have 2.73 gears, right?

3.08s were a factory option.

Cheers,
Dave Combs - 21 Feb 2006 01:34 GMT
I've kept track of the milage on my '90 LX 5.0 5 speed which now has about
106,000 miles.  In the early days town driving was around 17-18 mpg but that
had some LA freeway in the commute.  Never got over 25 on the highway.  Over
the years it has declined to 13-14 mpg town.  Now its just little short stop
and go trips.  I did notice about a 2 mpg drop when California went to
"seasonal" gasoline.

Dave

> > >>> Hi guys, wondering if someone could tell me a rough m/gallon figure
> for
[quoted text clipped - 22 lines]
>
> Al
Michael - 20 Feb 2006 15:50 GMT
> Hi guys, wondering if someone could tell me a rough m/gallon figure for a
> 5.0 litre mustang motor. Not any special variant just the basic 5.0 fuel
[quoted text clipped - 3 lines]
>
> Gary

Hiya...

Great question for me...  Years ago when I had a 1990 LX, I wanted to know
the best mileage I could get with it, and more importantly, how the gas
mileage would change if I went from driving as conservatively as I could to
driving hard with a lot of strong but not irresponsible accelerations.
Before I started keeping a book, I tuned the car up, always used the same
gas, and I kept the tire pressure identical.  My 1990 LX was COMPLETELY
stock with two exceptions.  I had a MAC cat back system and I had a set of
Headmen headers.  I don't even remember what the exact type of headers they
were.  I also had the stock gears.

The first study was driving the LX 5.0 around town and on the highway as
conservatively as possible.  I kept a book for two months. I drove on
average 250 miles per week.

Around town, my 90 LX 5.0 got an average of 21 mpg driving conservatively.
On the highway, I got an average of 30 mpg on the highway. Average steady
cruising speed of 60 mph with very moderate acceleration up to that speed
and no efforts made to pass traffic.  I got to 60 and kept it there in the
right lane.

The second study was with driving the 1990 LX hard.  I would accelerate hard
around town from light to light and stop light to stop sign.  Responsibly,
of course. Lots of that good Mustang 5.0 torque with the pedal being used
often and generously. My gas mileage driving like this around town went down
to and average of 16 mpg.

On the highway... I accelerated hard to the cruising speed of 60 mpg.  I
also dropped down into 4th gear and accelerated 5 to 10 mph regularly to
pass traffic.  The average gas mileage was 25 mpg.

Going on other studies that I have read for stock 5.0's with my gears, as  I
figured, driving style has a lot to do with gas mileage.  Also... In
comparing my numbers to other stock 5.0's I'm fairly sure that the
aftermarket headers and exhaust I had slightly improved my gas mileage.

Hope that helps....

Michael
Ironrod - 20 Feb 2006 18:21 GMT
My 88GT 'vert averages about 22 miles to the gallon with about a 50/50 mix
of in-town & highway driving.

> Hi guys, wondering if someone could tell me a rough m/gallon figure for a
> 5.0 litre mustang motor. Not any special variant just the basic 5.0 fuel
[quoted text clipped - 3 lines]
>
> Gary
Howard Nelson - 20 Feb 2006 18:44 GMT
> Hi guys, wondering if someone could tell me a rough m/gallon figure for a
> 5.0 litre mustang motor. Not any special variant just the basic 5.0 fuel
[quoted text clipped - 3 lines]
>
> Gary

3.73 gears AOD driven moderately hard 89 octane california emmissions 89 5.0
vert

18 mpg mixed driving.
Fred V. - 20 Feb 2006 23:18 GMT
I get about 20 mpg here in Ct.
Fred
89 LX 5.0

>> Hi guys, wondering if someone could tell me a rough m/gallon figure for a
>> 5.0 litre mustang motor. Not any special variant just the basic 5.0 fuel
[quoted text clipped - 9 lines]
>
> 18 mpg mixed driving.
GBR - 21 Feb 2006 00:43 GMT
Thanks heaps guys, this info will help me greatly in my negotiations with my
wife. Looking to switch to a 5.0ltr from a 2.5 litre turbo.

Gary
>I get about 20 mpg here in Ct.
> Fred
[quoted text clipped - 14 lines]
>>
>> 18 mpg mixed driving.
Anonymous Yakima Poster - 24 Feb 2006 07:22 GMT
94 GT - 244 RWHP. 3.55  15 City/26-30 Highway. Depends I'm going up hill or
downhill.

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