Just finished up my 2nd full tank of gas. I have 418 total miles on my car. Is it really this bad ?! Ha.

 

I do anywhere between 8.5l/100km and 24l/100km.

 

Highway at speed I get ~28mpg, that is cruising at 80-85mph. This past weekend, I followed a TN state trooper for about 60 miles @ 80+mph using the maximum distance on my ACC.

 

I'm at 500 miles. Average MPG is 18 now. I'm getting 23 on the highway. It's city driving that creates the issues. But I don't care. I have a TARGA 4!!!!!!

 

I'm averaging 12 MPG. I'm either driving wrong or i have a leak in my tank.

 

Over about 12,000 miles/1yr, my 992TTS has averaged 19.6mpg (12.15 l/100km) - a mix of highway 55-80mph and local country roads; very little city; 1 track day at LimeRock (@ 6mpg).

 

29 mpg last week for a full tank at highway cruising mostly in 7th gear at 75-80 mph. Average around 18-19 in the city.

 

Are you guys in Sport Mode in city driving or Normal ?

 

Sport

 

In sport mode most of the time. Sometimes in manual, other times in auto. I don't like the "normal" mode. Who wants to be in 5th gear at 40 mph?

 

I'm in Sport too and averaging 12.6 MPG in city. I'm mainly driving city though, with very little HWY. Still crazy to only get 200 miles out of a full tank of gas...

 

Only driven 327 miles averaging 14.9 mpg (US gallons) all in sport mode and city miles

Still keeping below 4000 rpm

My previous C43 AMG I was averaging about the same.

Fortunately I specified the extended range gas tank.

 

14 mpg average here. 500 miles. 100% sport mode, 70% city.

 

i feel you … my 2020 C2S only gets about 220 miles in mostly city driving for about 15 mpg .. and that’s mostly in normal mode driving too :/

On the highway though it definitely shines

 

I noticed the fuel economy of my 992 is noticeably worse than my 991.2. I wonder if this has to do with the cold start being twice as long.