What is your mpg? - Page 1 - Porsche General - PistonHeads UK

Hi Guys, I would be very interested to find out some statistics covering your overall domestic mpg (those that have fuel and mileage records or on board data) for 996 3.4's, 996/7 3.6's, 997 3.8's and 3.4 Cayman S cars. I would also be interested to find out what you observe to be the kind or rev band you are driving within most often. This data all to help us in our research into ways to improve the mpg of these models and in so doing reduce emissions. Many thanks in advance to anyone prepared to post results. Baz

Don’t own it now but during my 9 years with a 3.4 man. 996 I usually averaged 24mpg..usage 20% town/75%rural & motorway. With daily driving usually changed up at 3500/4000 making easy fast progress. On the motorway very rarely exceeded 3300rpm and then could easily get 28 mpg. At least once a week gave it all the beans in intermediate gears but wasn’t looking at consumption then…still miss that car.

16 in a 987.1 3.4. 18 in a 987.1 3.2. 20 in a 987.2 3.4. All three over at least 20k miles each. Same driving style in each. Mostly driving secondary and back roads. Steer clear of A roads and motorways where possible. Would personally struggle to use much more throttle. The DFI lump is definitely more efficient.

This might help https://www.honestjohn.co.uk/realmpg/porsche/

Polome said: Don’t own it now but during my 9 years with a 3.4 man. 996 I usually averaged 24mpg..usage 20% town/75%rural & motorway. With daily driving usually changed up at 3500/4000 making easy fast progress. On the motorway very rarely exceeded 3300rpm and then could easily get 28 mpg. At least once a week gave it all the beans in intermediate gears but wasn’t looking at consumption then…still miss that car. 24mpg!? That’s the same as my 1.6tdi van :0 I’d rather be in a Porsche though

981 Cayman S PDK: With 3.4L engine 10k miles, 16 track days 20.2mpg, then With 3.8L engine 17k miles, 38 track days 19.4mpg Majority of miles to and from UK/Euro tracks

Djtemeka said: Polome said: Don’t own it now but during my 9 years with a 3.4 man. 996 I usually averaged 24mpg..usage 20% town/75%rural & motorway. With daily driving usually changed up at 3500/4000 making easy fast progress. On the motorway very rarely exceeded 3300rpm and then could easily get 28 mpg. At least once a week gave it all the beans in intermediate gears but wasn’t looking at consumption then…still miss that car. 24mpg!? That’s the same as my 1.6tdi van :0 I’d rather be in a Porsche though True the Porsche is the better drive but many times during those years when needing to transport big stuff your van would have been a godsend ….🤣

Think there might be something wrong with my car engine is running a bit too rich

06 reg 987 S, gets mostly longer runs and averages about 28mpg. Also got a 2.0 718 for track use only which does roughly 1ltr/min .

I've an '05 997 C2s. When I bought her in 2011, she had just over 70k on - she's now up to 110k and runs like a peach. Never EVER wrung out until the oil temp is at or above 90deg, and I don't use 5th or 6th below 40mph in case of lugging. Driving is mainly of the stabbed rat variety once warmed, but we do a fair number of long journeys too, where the av economy can often get into the 27s. However, my principle av over all these years and miles is 25mpg.

I know it’s not been asked for but progress compared to old skool…. 993 C2 Manual with 160K miles on the clock. On the autoroute to Italy at a steady 3.2K revs (85 mph) she averaged 36mpg. Racing around B roads/mountains 16- 18 mpg. Had to use her for a month commuting whilst the LR was broke … average of around 24 mpg

...thank the lord you still have it.

Baz, Running 2005 997.1 (With Full Hartech rebuild around 3 years ago) c2s. 3.8. Triptronic. Run 4 times a week always same run. 9 miles country B road, between 30mph - 50mph, then motorway 36 miles , folowed by 9 miles B road again. Averaging 26mpg. Running on Shell Ultimate Super, and ALWAYS Millar's oil. Runs like a dream.

2006 997.1 3.6. My personal best was the weekend before last. That was cold start 8 miles (1 hour) crossing London and then motorway at 60mph hunting for fuel My longer runs up the M1 normally return 28-30mpg according to the OBC, cruising at around 3000rpm. 20mpg is normal in pure city driving and would put my mixed, long term average at 24-25mpg.

Orangecurry said: ...thank the lord you still have it. I see your mate has sold his WB

997S 3.8 Gen 2 Typically 18 MPG, this week in the fuel crisis its gone up to 24.4MPG

I'm getting 40mpg from my Golf GTI - brill car and I would not want to be a 911 keeping up on a back road. Rapid and i get 400 miles out of 50-60 quid tank in current fuel crisis

2005 997 3.6 Tiptronic S. 112k miles. 34mpg. Mix of motorway and local, probably 60% urban, 40% motorway. Tiptronic box, but always pull away in 1st gear. Average rpm 2250.

987.2 S Typically 25mpg if taking it easy. Although since resetting the trip the last 500 miles has seen an average 17.7mpg. Worst tank was 9.2mpg

hartech said: Hi Guys, I would be very interested to find out some statistics covering your overall domestic mpg (those that have fuel and mileage records or on board data) for 996 3.4's, 996/7 3.6's, 997 3.8's and 3.4 Cayman S cars. I would also be interested to find out what you observe to be the kind or rev band you are driving within most often. This data all to help us in our research into ways to improve the mpg of these models and in so doing reduce emissions. Many thanks in advance to anyone prepared to post results. Baz I can check the exact stats for you when I get home, but I have a trip running for about 5000 miles on my 981 GTS and it's reading about 35mpg. I do, however, do a fair bit of a motorway with it, so that is definitely skewed. I've seen 11mpg in a cold 5 mile crawl around London. A pure motorway run in summer and it dips into the 40s. Blasting about A/B roads and shorter journeys but with a warm engine, it'll be mid high 20s maybe.