[KrisHorton]

According to my display in my dash: 13.4.

Okay...what gives?

Kris

[SoCalBill]

Originally Posted by jlisle01

Shift points don't really matter that much. The shifter is not hooked up to the fuel system, it's that little pedal on the right that matters.

What?? The gas pedal controls the flow of gas? No kidding? damn!

What you shift at would make all the difference. If you were constantly shifting at 2500 RPM at a moderate rate you would certainly use less fuel over time than gunning it to 5K every gear to get to you desired speed.

[Turbo 05]

10-12 if i am lucky (heavy foot)
100% stock
90% Los Angeles city (0-40mph)
10% Los Angeles Hwy (0-30mph)

[Turbo 05]

Originally Posted by jlisle01

Shift points don't really matter that much. The shifter is not hooked up to the fuel system, it's that little pedal on the right that matters.

lets simplify this, if it takes x fuel to keep the car running at 2000 rpm (rotations per min) then wouldn't you agree that it would take more then x to have the motor spin at 6K rpm (rotations per min).

If you still dont get it.... then let me add this, when the motor rotates (rpm) the valves are opening and closing and fuel and air are added and exhausted, the faster the motor rotates the more often fuel and air will be added, in essence it will use more gas at higher rpms.

[05 BLK-BLK]

HWY - 23-26
City - 17-20

[dmaxstang]

on a recent trip to West, TX from Mckinney TX about 2hrs at 80-85 got 26.9 mpg in my GT 5-speed. Besides that my average over a 3000 mile oil change is 19.1 mpg, medium highway miles and lots of stop and go. 13k miles and lovin mile of it.

[fnkyscotty]

05 Mustang V6 Auto get between 17-19 city 20-25 Highway..

[05gt]

A little over 1k miles, mostly city driving to and from work.

16.256 mpg

[Big-Foot]

18 MPG City - Short shifting at 2k RPM
25 MPG Hwy - w/ AC on 70-85MPH
Car has 6k miles on it and Mobil-1 Synthetic oil.

[351CJ]

Originally Posted by Turbo 05

lets simplify this, if it takes x fuel to keep the car running at 2000 rpm (rotations per min) then wouldn't you agree that it would take more then x to have the motor spin at 6K rpm (rotations per min).

If you still dont get it.... then let me add this, when the motor rotates (rpm) the valves are opening and closing and fuel and air are added and exhausted, the faster the motor rotates the more often fuel and air will be added, in essence it will use more gas at higher rpms.

You're on the right track, but it's a little more complicated.

You are correct in that to keep the engine running there is a minumum amount of fuel that must be used to maintain the A/F mix ratio. The faster the engine spins the more air it pumps so the more fuel is needed.

However, what you are not considering is that amount of fuel depends on the load the engine is under. The higher the load (given the same RPM) the more fuel is needed) Saying it another way: It takes less fuel to rev, your engine to 5K in neutral while sitting in you driveway than running down the road in 4th gear pulling 5K RPM while going 114 MPH.

[D.Hearne]

Originally Posted by fnkyscotty

05 Mustang V6 Auto get between 17-19 city 20-25 Highway..

Wow, you could have had a V8! Other than the initial purchase price and availability, there's really no reason to buy a V6 Stang, if you're looking for fuel economy. Only thing I like in the V6 cars over the GT's is their lacking the Fog lights in the grill. They look much better without them, I'm going to see about removing mine when the 06 gets here.

[ursastang]

Manual V6 Deluxe...

I get consistently between 21-22 MPG with congested main roads with a smattering of in-town driving.

[klee024]

06 GT 5 Speed

First 400 miles 21.8 mpg.......Good start.

[AJC-05GT]

15-16mpg around town
hi-way 20-21mpg

gtmanual

[EastCoastStang]

I've owned my 05 since November 2004...I'm currently on a cross-country trip litterally coast-to-coast. Yesterday my odometer registered 10,247. I reset all the trip data when I left North Carolina and I've currently covered 1,100 miles with 1,300 left to go. Average mileage (according to the 05's trip computer is 27.6 mpg. Average speed is 54 MPH. This includes running the A/C constantly, driving through the Smokey Mountains on I-40, and two 20 min dead stopped traffic jams, in and around mileage when we stop for the night to eat, lodging etc. I'm getting about 30 MPG on the highway.

[EastCoastStang]

Stopped yesterday in Amarillo, TX. Trip Computer read 26.9 average fuel mileage.
Once again, that's from south of Raleigh, NC to Amarillo, TX straight across I-40, average speed 52 MPH. I'm sure most will wonder how I was able to hold such a low speed (62-65 mph) for such distance...my wife was following towing a 5x8 uhaul.

When I left Amarillo, I reset the average fuel useage function of the trip computer and started experimenting a little. with the A/C off, windows down 1/2 way, I averaged 30-31 mpg. I turned the A/C on drove 62 mph averaged 28 mpg.

My fuel mileage around town sucks like everyone else's, I'm sure...about 15.5 mpg. But can't beat the Highway mileage, though. I was quite surprised to say the least.

Currently in Gallup, NM.

[EastCoastStang]

Stopped for the night in Flagstaff, Ar. Took a detour to the Grand Canyon...got there very quickly in the GT. Next morning checked air pressure and noticed I had been running 30.5 psi in each tire. Increased air pressure to 36 psi. Noticeable difference. I averaged 32 mpg from Flagstaff to Las Vegas. Ran mostly with Cruise control set to 65 mph, windows up, A/C on intermittently.

My overall average for the trip (Fayetteville, NC to Las Vegas, NV) was....26.4 mpg...
97 gallons burned, 2563 miles travelled. If I'd added that extra tire pressure at the beginning, it would have been a little better. Hope you're having as much fun in your stang as I am.



2005 Mustang GT coupe
Mineral Grey
5-speed w/3.55 axle
Leather
IUP
shaker 500
Magnaflow #15882 Axleback exhaust
Premium wheels

[Turbo 05]

drive like i stole it i get 12mpg, drive like gas is over $3/gallon city 14-15 mpg (heavy traffic), hwy 22-27 mpg

[Turbo 05]

Originally Posted by 351CJ

You're on the right track, but it's a little more complicated.

You are correct in that to keep the engine running there is a minumum amount of fuel that must be used to maintain the A/F mix ratio. The faster the engine spins the more air it pumps so the more fuel is needed.

However, what you are not considering is that amount of fuel depends on the load the engine is under. The higher the load (given the same RPM) the more fuel is needed) Saying it another way: It takes less fuel to rev, your engine to 5K in neutral while sitting in you driveway than running down the road in 4th gear pulling 5K RPM while going 114 MPH.

you are 100% correct

[SactoStang]

Originally Posted by EastCoastStang

Stopped for the night in Flagstaff, Ar. Took a detour to the Grand Canyon...got there very quickly in the GT. Next morning checked air pressure and noticed I had been running 30.5 psi in each tire. Increased air pressure to 36 psi. Noticeable difference. I averaged 32 mpg from Flagstaff to Las Vegas. Ran mostly with Cruise control set to 65 mph, windows up, A/C on intermittently.

My overall average for the trip (Fayetteville, NC to Las Vegas, NV) was....26.4 mpg...
97 gallons burned, 2563 miles travelled. If I'd added that extra tire pressure at the beginning, it would have been a little better. Hope you're having as much fun in your stang as I am.



2005 Mustang GT coupe
Mineral Grey
5-speed w/3.55 axle
Leather
IUP
shaker 500
Magnaflow #15882 Axleback exhaust
Premium wheels

Hey there EastCoastStang, thanks for keeping us updated on the road trip and gas mileage. As the gas prices keep climbing, it's good to know what type of gas mileage a long distance road trip likes your would turn up. I'm stuck here in Cali for a while and won't be hitting the road like you for a long long time. Have a safe trip back.

[D.Hearne]

Originally Posted by EastCoastStang

Stopped for the night in Flagstaff, Ar. Took a detour to the Grand Canyon...got there very quickly in the GT. Next morning checked air pressure and noticed I had been running 30.5 psi in each tire. Increased air pressure to 36 psi. Noticeable difference. I averaged 32 mpg from Flagstaff to Las Vegas. Ran mostly with Cruise control set to 65 mph, windows up, A/C on intermittently.

My overall average for the trip (Fayetteville, NC to Las Vegas, NV) was....26.4 mpg...
97 gallons burned, 2563 miles travelled. If I'd added that extra tire pressure at the beginning, it would have been a little better. Hope you're having as much fun in your stang as I am.



2005 Mustang GT coupe
Mineral Grey
5-speed w/3.55 axle
Leather
IUP
shaker 500
Magnaflow #15882 Axleback exhaust
Premium wheels

The reason for the increase from Flagstaff to Las Vegas was due to the fact that you we're going downhill for most of that distance. Flag is around 7-8,000 ft. Elevation, Las Vegas is much lower by several thousand feet. ( I don't recall the exact elevations, but I know there's a huge distance involved here)

[EastCoastStang]

Sactostang, thanks for the kind words...It was a great trip.

Founding Member,

After I posted last message my father in law who happens to be a long-haul trucker told me the same thing in reference to the loss of elevation. There is definately some truth to this, however, it's a little of both. It's not exactly "all down hill". Flagstaff is about 7,000 ft, Las Vegas about 2,000. This 5,000 ft drop is accomplished over 150 miles, and it's not constant. (I was monitoring elevations with my vehicle mounted GPS throughout the trip). Don't know if you ever made the drive, but for every downhill there's an extremely steep uphill climb to follow, just not quite as high as you were before, which leads to the gradual loss in elevation. it's not as if you were in a constant downhill freefall. If that was the case I would have just kicked it over into neutral. I'm sure since you are a founding member I don't have to tell you that tire pressure has a direct impact on rolling resistance, ergo, fuel economy. I haven't let out the extra air yet and there is a big difference in rear wheel traction. I can barely get on it in a turn now and the rear of the car wants to come around.

I've been driving my 2005 mustang gt since November 2004 and trust me, I've put pleeeenty of gas in it and know what my mileage normally is.

I see you are from Southern Louisiana...hope you came out of the hurricane no worse for the wear and you enjoy your 2006 as much as I have my 2005.

TDR

[EastCoastStang]

[QUOTE=EastCoastStang]Sactostang, thanks for the kind words...It was a great trip.

Founding Member,

After I posted last message my father in law who happens to be a long-haul trucker told me the same thing in reference to the loss of elevation. There is definately some truth to this, however, it's a little of both. It's not exactly "all down hill". Flagstaff is about 7,000 ft, Las Vegas about 2,000. This 5,000 ft drop is accomplished over 150 miles, and it's not constant. (I was monitoring elevations with my vehicle mounted GPS throughout the trip). Don't know if you ever made the drive, but for every downhill there's an extremely steep uphill climb to follow, just not quite as high as you were before, which leads to the gradual loss in elevation. it's not as if you were in a constant downhill freefall. If that was the case I would have just kicked it over into neutral. I'm sure since you are a founding member I don't have to tell you that tire pressure has a direct impact on rolling resistance, ergo, fuel economy. I haven't let out the extra air yet and there is a big difference in rear wheel traction. I can barely get on it in a turn now and the rear of the car wants to come around.

I've been driving my 2005 mustang gt since November 2004 and trust me, I've put pleeeenty of gas in it and know what my mileage normally is.

I see you are from Southern Louisiana...hope you came out of the hurricane no worse for the wear and you enjoy your 2006 as much as I have my 2005.

TDR
A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort.
-- Herm Albright
As long as people will accept crap, it will be financially profitable to dispense it.
-- Dick Cavett

[Dubl10]

Originally Posted by KrisHorton

According to my display in my dash: 13.4.

Okay...what gives?

Kris

Do all of ours display it in the dash? Or is it just yours, like do you have the IUP? I don't have that. I was wondering if everybody was simply getting it from the dash or if everyone was calculating it manual, and if so, how are you calculating it?

how do you calculate your mpg manual and it be 100% correct.

I've put on a new throttle body spacer and a cold air intake in my car and hoping that improves my MPG.

[jt14894]

Originally Posted by Dubl10

Do all of ours display it in the dash? Or is it just yours, like do you have the IUP? I don't have that. I was wondering if everybody was simply getting it from the dash or if everyone was calculating it manual, and if so, how are you calculating it?

how do you calculate your mpg manual and it be 100% correct.

I've put on a new throttle body spacer and a cold air intake in my car and hoping that improves my MPG.

I have the IUP and always compare the MPG versus my manual calculations and they've been relatively close.
I'm going to be filling up the car real soon so I will post the newest numbers after I fillup.
To try and keep my calculations consistent, what I normally do is, let the pump nozzle stop and then I do one pull of the nozzle trigger until it stops again.
From the total gallons, after the second stop, I calculate my MPG.
We'll see what my numbers are this time.