30mpg in a GT ! Who needs a Ecoboost ?

[roadpilot]

Just returned from my first extended (7 hours each way) road trip, my GT 5.0L/A10 averaged over 26mpg

Hand calculated based on actual fuel purchased and miles driving or per the computer in the car/dash?

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[rkmustang]

Hand calculated based on actual fuel purchased and miles driving or per the computer in the car/dash?

Bit of both, Dash reported 26.2 mpg for the trip, but manual calc of miles to approx gas (I didn't run it to empty on the highway) had her at 27.3 mpg. This all with a fair bit of "in-town" driving in the middle.

 

[krisk]

I get about 23.5 on the interstate and 18 with mixed driving. FWIW 4 mpg on the track.

 

[Sofa King]

I get about 23.5 on the interstate and 18 with mixed driving. FWIW 4 mpg on the track.

LOL @ 4mpg on the track... I had a drag car that got 1/4mpg!

 

[FarNorth]

Here’s an update.. I know you won’t care but hey!

This is my latest fuel economy.

7.6 litres/100kms is UK37.17mpg or US30.95mpg
When I fill now my GT tells me 737kms (458 miles) to empty.

No, I don’t drive like Grandpa, (actually I’m not a Grandpa).
I do zoom occasionally.
This is the result of some things I do to every vehicle I’ve ever owned, and it works.

 

[radar]

Learning to drive, Dad told me to take off, “squeezing the accelerator like there was an eggshell before your foot and the pedal”.
This from a generation of petrol rationing, he learnt to drive a pre- war Vauxhall and rode a motorcycle, unable to afford a car.
Today I still take off slowly; everyone else (Hyundais to trucks) like a Jackrabbit - to next red light, where I slip in beside.

Managed 35 mpg (imperial) out of 10 speed auto. Can’t match it out of manual.

 

[krisk]

Learning to drive, Dad told me to take off, “squeezing the accelerator like there was an eggshell before your foot and the pedal”.
This from a generation of petrol rationing, he learnt to drive a pre- war Vauxhall and rode a motorcycle, unable to afford a car.
Today I still take off slowly; everyone else (Hyundais to trucks) like a Jackrabbit - to next red light, where I slip in beside.

Managed 35 mpg (imperial) out of 10 speed auto. Can’t match it out of manual.

In my nearly 7,000lb truck, I do exactly as you described. I don’t get in a hurry, take off easy and brake way in advance of a stop, even when I’m not hauling anything. It’s a truck designed for hauling, not racing. Yet, on the Super Duty forums people are all the time talking about 0-60 times, who they can beat off the line, etc. It is supremely stupid if you ask me. I bought a truck to haul and tow; I don’t car how fast it goes from 0-60 unloaded. I drive like a Grandpa (which, admittedly I am).

Now…in the Mustang I stomp on the accelerator most of the time. The last concern when I’m driving is gas mileage. I bought the truck to do a job; I bought the Mustang for fun. I’ll take the 4mpg on the race track any day of the week over the 25-30mpg cruising on the highway. I’m not going to drive my Mustang like my truck, and if it costs me 5-10mpg in fuel efficiency while driving around town, then so be it.

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