4carl

First 150 miles mostly city and some canyons 13MPG. Looks like about 25@ 70mph. Big picture really doesn't matter just curious what others are seeing? thanks carl

Jooyoung99

That sounds about right. I'm averaging 14 mpg for the first 700 miles. Mostly city.

jphughan

Sounds like my M3, although I don't get 25 MPG at 70 MPH on the highway. Mileage should also improve a bit as the engine breaks in.

Inrev

Averaging 12mpg here, but I'm not stritcly adhering to the "keep it Under 4k RPM" break-in procedure either... Always in 2nd and 3rd gear, 4th on the highway sometimes...

ChrisF

My god, my E92 averages 17+. Can't be that bad. Maybe the ECU is running rich for break in?

arena-RTR

It will get much better after a few thousand miles.

Ajjra

25mpg highway. Have not checked local road use.

Archimedes

Wouldn't surprise me if you go 14-15 in the city in a GT4, even after break in. In my C2S, if I drive in manual mode in the city and hold the shifts even a bit, the mileage really falls off. In auto mode with the earlier shifts, I do better than that in the city, and on the highway in any mode it does a lot better, as I'm sure the GT4 will as well. On the highway I get 29-30mpg and expect the GT4 will be similar.

The city mileage all depends on how you drive it and I'm sure the average GT4 driver runs each gear out a bit, even in normal commuting situations. That is going to bring mileage down a bit from the ratings.

mm1

17.5 but this includes half of it delivery mileage back from 230 miles away. I think I averaged 22 on that trip. I get about 13 each trip out locally as per the onboard cpu.

You do know you bought a GT4 right? Drive it likes it's meant to be driven!

NAAMAZ

26 at 82mph going from Flagstaff to Phoenix today

Selo

Hell, I get as good as this in my GT500. One of the things I like about Porsches is that they somehow seem more responsible........but I guess not.

neanicu

I heard that after break in,this engine likes it between 5 and 7K. I wonder what MPG will I be getting then?

2slow2speed

FWIW, the 7th gear on the PDK is a true overdrive vs 6th gear on the GT4, so the GT4's MPG for Hwy will probably be lower relative to your C2S.

Accel Junky

About 25hwy for me. Haven't driven it since the trip home so not sure about city or mixed.

RocketGuy3

EPA lists it as 18 city, right? Hard to believe the actual numbers are THAT much lower, unless you guys either live in very heavy traffic areas, or have lead feet, heh.