2015 Ford Mustang GT Long-Term Road Test - MPG

2015 Ford Mustang GT Long-Term Road Test

  • Full Review
  • Pricing & Specs
  • Road Tests (2)
  • Comparison
  • Long-Term

2015 Ford Mustang GT: Fuel Economy Update for January - Ready to Say Goodbye

by Mark Takahashi, Automotive Editor on February 9, 2016

2015 Ford Mustang GT

Time is winding down for our long-term 2015 Ford Mustang GT, signaling my long slide into depression. It'll be leaving just as things were getting fun with the suspension and exhaust upgrades.

See full article and comment.


2015 Ford Mustang GT: Short Gearing Makes It Slower

by Carlos Lago, Road Test Editor on January 26, 2016

2015 Ford Mustang GT

Don't get me wrong, I enjoy the optional 3.73 final drive in our 2015 Ford Mustang GT. It makes the powertrain more exciting and rewards you for using the shifter more frequently, so we drive it harder.

The primary downside is fuel economy: Our lifetime mpg is hovering around 15 (!!) mpg. The other downside is that the frequency with which you want to shift actually slows the Mustang down when you're leaving from a stop light. The windows of useable acceleration in first and second are tiny, such that it seems you spend more time engaging and disengaging the gear than actually using it for acceleration.

See full article and comment.


2015 Ford Mustang GT: Fuel Economy Update for November: Awesome Exhaust, Awful Efficiency

by James Riswick, New & Used Car Editor on December 9, 2015

2015 Ford Mustang GT

Our 2015 Ford Mustang GT's awesome new Ford Racing exhaust continues to be, well, awesome. I found myself driving in third and fourth on the highway this morning just to revel in the noises that so wonderfully enhance the big 5.0 V8.

When I told this to some fellow editors they all nodded their heads with a knowing smile as if to say, "Oh yeah, I do that too."

In related news, our lifetime fuel economy went down in October and November to 15.7 mpg. True, that's only one-tenth of an mpg, but it's still quite awful given the EPA rating of 19 mpg combined. 

See full article and comment.


2015 Ford Mustang GT: A Hike, a Bike, and a Track-Day Wedding, Part 3

by Mike Monticello, Senior Road Test Editor on October 18, 2015

2015 Ford Mustang GT

If you've followed our road trip adventure in our long-term 2015 Ford Mustang GT then you'll know at this point we still had yet to set tires on track. We've hiked in Yosemite, mountain biked on the trails outside of Mazda Raceway Laguna Seca and even attended a wedding on the Corkscrew. But we had yet to burn up rubber and brake pads in anger.

That changes now.

See full article and comment.


2015 Ford Mustang GT: Fuel Economy Update for September - Track Day, New Exhaust Drop MPG Average

by Carlos Lago, Road Test Editor on October 8, 2015

2015 Ford Mustang GT

You can almost hear Captain Obvious: "If you wanted better fuel economy from your 2015 Ford Mustang GT, you shouldn't have optioned it with a 3.73 rear end, installed a loud exhaust, and taken it on a track day!"

Our Mustang covered 1,706 miles in September and consumed 118.2 gallons of high-octane gas, making for a 14.4 mpg month average. That's the third lowest we've recorded in our 10 months of ownership.

What happened?

See full article and comment.


2015 Ford Mustang GT: Not Quite a Proper GT

By Josh Sadlier, Senior Editor on September 18, 2015

2015 Ford Mustang GT

I can't tell you what the "GT" officially stands for in our long-term 2015 Ford Mustang GT's name. I asked the Internet; it didn't know.

What I can tell you is that GT has historically stood for Gran Turismo, or Grand Tourer. Wikipedia says a Grand Tourer is a car that's "able to make long-distance, high-speed journeys in both comfort and style."

Man, this Mustang is almost there. There was plenty of comfort and style on my trip to Monterey, and I dig the car's high-speed composure and refinement.

But to me, a proper GT machine needs a real-world driving range of at least 400 miles. And that's where the Mustang comes up short.

See full article and comment.


2015 Ford Mustang GT: Fuel Economy Update for June — Stretching Its Legs

July 17, 2015

2015 Ford Mustang GT

June was a big month for our long-term 2015 Mustang GT. We welcomed the summer with two road trips. John O'Dell took a tour of California's Wine Country and I took a few days to check out Sedona, Arizona

See full article and comment.


2015 Ford Mustang GT: Okay, I'll Drive It - All Day Long!

June 18, 2015

2015 Ford Mustang GT

The first new car I bought myself was a 1967 Mustang GT 2+2. I've got a 1965 coupe in my garage. I may be Edmunds's green-car editor, but I still do love me a V8 on occasion. So it was only right that I pick our 2015 Ford Mustang GT for a recent 1,500-mile California road trip.

I'd been a bit worried after a few of my fellow editors poked at the pony for being a bit bloated with, as Josh Sadlier put it, a bulbous hood and the overall feel of a fatsuit, not to mention Kurt's rant against its color and habit of pogoing on concrete freeways and over Southern California's increasingly deteriorating surface streets.

But it turned out to be a great ride for a long trip up the middle of the state, to the coastal redwood forests and wineries of Sonoma County and back.

See full article and comment.


2015 Ford Mustang GT: Fuel Economy Update for May — Overall MPG Improves and the New Guys Weigh In

June 9, 2015

2015 Ford Mustang GT

We put 1,371 miles on our 2015 Ford Mustang GT in May, using 84.7 gallons of 91-octane fuel and averaging 16.2 mpg for the month. This bumped the car's lifetime average from 15.3 mpg up to 15.5 mpg.

Our worst fill-up for the month was 14.0 mpg and our best was 20.5 (that's still less than our best-ever of 22.8 mpg, though).

See full article and comment.


2015 Ford Mustang GT: Short Gearing Is Fun Gearing

May 29, 2015

2015 Ford Mustang GT

The $2,495 Performance Package on our long-term 2015 Ford Mustang GT includes a bunch of upgrades, but the biggest change on the day-to-day driving experience comes from its 3.73 final drive.

See full article and comment.


2015 Ford Mustang GT: Fuel Update for April — Commuting Miles Bump Up Overall Average

May 15, 2015

2015 Jaguar F-Type R Coupe

That 5.0 might just stand for its average mpg by the time we get through with it.

It's really not that bad, though. In April, the Mustang spent most of its time commuting our editors around Southern California, so it's hard to expect any kind of fuel efficiency heroics from our 2015 Ford Mustang GT's five-liter motor. That said, we did add another 1,200 miles onto our not-so-little pony (yeah, I went there) and managed a minor improvement in fuel economy.

See full article and comment.


2015 Ford Mustang GT: Fuel Economy Update for March

April 3, 2015

2015 Ford Mustang GT

The very first fill-up of March was a lost cause. I'm not entirely sure what happened, but our 2015 Ford Mustang GT fuel logbook contains the simple note "pump issues" where the gallons-added entry should be.

I suppose we'll never know the fuel economy of those 227 miles.

And I think I should also exclude another 90.9-mile fill-up, even though no mistake was involved. It was a full fill, too. I personally added 15.363 gallons of premium with just three miles to go on the distance-to-empty meter.

How could this be?

I was at a track-day fundraiser at Willow Springs raceway that you'll read about in a future post. Near the end of the day, the car stumbled while cornering hard in Turn 5, whereupon I returned to the pits and drove straight out the gate to the nearest gas station. The in-car gauge read 6.3 mpg, but the math worked out to just 5.9 mpg.

Not a very representative activity, I must admit.

See full article and comment.


2015 Ford Mustang GT: Love the Capless Fuel Filler

March 10, 2015

2015 Ford Mustang GT

Ford pioneered the Easy Fuel Capless Fuel Filler back in 2008 (on the 2009 Explorer), and we've lived with a few Fords with it since, including our long-term 2009 Ford Flex, 2010 Ford Mustang GT, 2011 Ford Explorer and 2013 Focus ST. Our orange long-term 2015 Ford Mustang GT is the latest.

Basically there's no cap to unscrew or hang while fueling. Just insert the gas pump nozzle and start gassing up.

Seven years ago I thought this was gratuitous engineering at its worst. An answer to a non-question. A dismissal of all that is holy.

Are we really that lazy? What's next, a car that drives itself?

See full article and comment.


2015 Ford Mustang GT: Fuel Economy Update for February

March 4, 2015

2015 Ford Mustang GT

In the month of February we drove our 2015 Ford Mustang GT a total of 624 miles. It had a lengthy stay in airport parking and the remainder of the month limited to city driving. We still managed to set a record this month, however...

See full article and comment.


2015 Ford Mustang GT: Fuel Economy Update for January

February 5, 2015

2015 Ford Mustang GT

In the past month, our 2015 Ford Mustang GT's fuel economy went up by more than 2 mpg! Unfortunately, it's still pretty abysmal.

See full article and comment.


2015 Ford Mustang GT: Fuel Economy for December

January 8, 2015

2015 Ford Mustang GT

We started tracking fuel economy in our 2015 Ford Mustang GT in mid-December with 171 miles on the odo. Since then, it's been easy sailing as we nurse this big V8 through its break-in procedure. No hard driving. No high revs. Should be a slam-dunk to hit the EPA's 19 mpg combined (15 city / 25 highway) rating. Right?

See full article and comment.



Leave a Comment
ADVERTISEMENT
ADVERTISEMENT

Past Long-Term Road Tests