smokersteve

Just got back from a 600 mile round trip. Coming home (300miles) 991 did 27.5 mpg @ 70 - 85 mph
Se how she got to 110mph. Somethings wrong with the tach.....


Even with the funny tach, I'm lovin this girl.

My 970 4s does the same thing. Upper 20's mpg. With a funny tach. Must run in the family...

n8kruger

Same here in my 500 mile round-trip to Hershey with sport mode on by default with myself and two passengers and a car full of luggage.

Jack F

So nice to see those kind of mpg numbers.

Dewinator

Nice, yep I've noticed with the NA motors, I tend to get better gas mileage than EPA because the highway test is too slow for them to reach optimum efficiency.

Turbo engines, not so much...

Key Left

More like end of high butane winter gas....

Dewinator

I'm not sure CA's central valley has a "winter gas" since it doesn't have a "winter".

MagicRat

I know a UK gallon is bigger than a US one, but still reckon this was a pretty special result on a drive back from the Midlands last night. Didn't even have the coasting enabled!

Peruna

Wow. After a 500 mile road trip with a heavy right foot, my consumption showed 21 MPG. In contrast, my old C63 averaged between 13 and 14. Amazing what efficient engineering and low weight will do.

DerekS

I track all my mileage, if anyone is interested:

http://www.fuelly.com/car/porsche/91...ekstuts/379658

Stil_1

I'm noticing much better Mileage than my old F80 M3.

I'm getting 21 mpg going to work in the C4S vs 17-18 mpg in the M3 (mostly city driving and some highway). On freeways, I'm getting ~30 mpg in the seattle area going 405 north and south from Seatac - Bothell. In the M3 max I could pull was ~24-25 mpg.

So yeah, surprising how efficient even the 991.1 can be.

Under heavy load, both the M3 and C4S get lower numbers. ~9-10 mpg for the M3, ~12 mpg for the C4S.

On track, both are single digit and pretty close to 4-6 mpg.

systemr

guys i am averaging 19mpg, my driving consists of weekend canyon carving and the occasional track day.

what am i doing wrong? or what am i doing so right

smokersteve

I was trying to get good mpg with keeping a high speed. It's how you work the throttle.

I do enjoy the car more when it's under 20mpg. I'm happier that way haha.

RichAA

36 mpg

1200 mi road trip when I bought it: first half, speed control set on 80, I was shocked to see 33+. Second half, slightly slower, got 35+.

With rounding, that's 36 mpg. My 350 hp sports car gets 36 mpg.