I get 12-13 MPG...been this way over 32,000 km. It's normal for a car driven moderately aggressively. Cruising on the highway it gets 25+ MPG so long as I'm not caning it on a 2-lane road with frequent passing.

 

i'll take it off your hands. you shouldn't ahve to suffer with such terrible fuel economy.

 

I'll admit I can be a bit OCD about keeping records on my cars. So-o-o-o-o-o it is true, I have a spreadsheet for all fuel I purchase for each car and motorcycle. Over a year and 8,084 miles I've averaged 20.97 mpg with my 2021 C2S. I've had as low as 16 mpg and as high as 25 mpg on a fill up. Around town, the fuel economy really drops, but on the highway at 72+mph or 50+mph backroads, it'll easily exceed 25 mpg.

 

I have driven over 2000 km so far. Range has been 9 litres / 100km to 14.5 litres / 100km (25mpg to 16mpg). Cruising in highway I usually get to 10.5 L/100km or so.

A side comment, my understanding is that as the car is not fully broken in as I am still under 3k km, fuel and oil usage will vary over longer term averages.

 

I get anywhere from 26-29mpg highway, it just depends on weather and traffic conditions.

 

We took delivery of our car at PEC Atlanta and drove it 2,000 miles back home to Boston.
I averaged 27 mpg over two tank fulls, and saw 31 mpg on the gauge.

 

Did u go home via Chicago to hit 2000 miles ?

🤣🤣🤣🤣

 

Highest that I ever saw in my C4S was a sustained 28MPG on the highway. More typically 22-24MPG on the highway. 18MPG on general runabouts. 12MPG or less attacking backroads.

 

My C2S has over 9K miles now and I drive it almost always in Sport mode. I average about 23-25 mpg and the highest I've had is 31 mpg. However, I live in a more rural area so my drives are rarely interrupted by other cars, traffic lights, etc. which is key. Although I take a lot of spirited drives on the multitude of back roads in the area, I *may* hit 2-3 lights at the start of my drive, don't see another for 20+ minutes, hit 1 or 2 more lights, and then go another 20-25 minutes without any, and then finally the 2-3 lights I mentioned at the beginning. It helps a lot that I'm retired and typically drive the 992 when others are at work and use my other vehicle for "in-town" usage.

 

I sure am glad I specced the extended range tank! Sounds like my C63 is about as good on gas as the 911 for city usage — 13-16mpg. I’m impressed by the highway mileage you’re all getting though! I can’t get better than 22 in the AMG.

 

I get anything from 11.5 MPG on a brisk Saturday morning drive when no one is around to 14-15 MPG on spirited drives but with a mix of open roads and starts and stops. On the highway at lets say higher than the "Suggested speed limit" I get 17-18 MPG. Once I was worried about my consumption and put the car into regular mode, drove at 60 MPH on the highway and got around 30+ MPG. OMG that was the worst 10 miles I have ever driven and never wish to to do that again.

Although I would love to be using a little less gas the reality is that is why I bought a Porsche and a 911 and the day I start getting 21-25 MPG as a routine is the day I trade the car in and buy myself a Mercedes or BMW cruiser - just saying.

To OP take your car out on a low acceleration drive in regular mode on a highway at 60-65 MPH, prove to yourself your car is not defective and then enjoy your 12 MPG because you are obviously having fun !!!!!

 

I only have 1400 miles on the car, overall, my M.P.G. is like 19 mpg. It seems the less I use the car the lower the fuel consumption. If I do a lot of short trips I get about 12-13 if I do highway trips 28-29.

 

My fuel economy in my 2021 Carrera S manual is noticeably worse than my previous 991.1 and 991.2 911s. My 2013 Carrera S manual coupe, I got around 22 mpg in average and 28 mpg on the highway. I used to be able to hit 30 mpg on the highway in the summer in my 2018 4S manual coupe and averaged closer to 23-24 mpg. My 2019 Carrera GTS manual coupe, I got about 22 mpg average and 28 mpg on the highway. My 2021, I get mileage of 16-18 mpg around town, average around 20-21 mpg, and have yet to hit higher than 26 mpg on the highway over multiple hour cruises. I’ve got 11k miles on my car. I drove from South Shore MA to Provincetown yesterday and back, averaging about 50 mph over the trip. Highest recorded fuel economy was 24.5 mpg.

 

City always in Sports mode = 15 mpg.. long trips highway (+80) n Normal mode = 23 mpg

 

Over 8,000 miles, in Sport Manual mode PDK. I average 17 to 18 miles a gallon with 60% highway and 40% local.

In Normal on a long highway cruise I average about 28mpg. With the Extended Range tank that’s 600+ miles!