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997 Forum 2005-2012
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View Poll Results: What is your combined MPG?
10 mpg to 14 mpg
6.20%
14 mpg to 18 mpg
44.96%
18 mpg to 22 mpg
40.31%
over 22
8.53%
Voters: 129. You may not vote on this poll

Fuel economy on a 997 C2S?

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Old 04-21-2008, 06:18 PM
  #16  
looney2n
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At nearly 3 week old and only 1500 miles, I average 20.7 around town.

I would say 1200 of these miles are backroads testing out the "grip" of rear tires and suspension................and I am driving aggressively. When I do, I am getting somewhere around 16.7 mpg.

My average speed through 1500 miles is a whopping 39 mph. I try to stay off the big straight roads!!!!!
Old 04-21-2008, 06:25 PM
  #17  
pmgoodwin
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I have reason to believe that in a '05 C2S cab with the top down driving at a consistant 85-90 on a highway - note: I'm not admitting to driving a consistant 85-90 - will have an average of 24.8.

usual disclaimers apply: professional driver, closed course, YMMV, not valid in NY, NJ or for any non-resident Yankees fans.
Old 04-21-2008, 08:23 PM
  #18  
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Interesting that the PCM Trip module allows for separate readings/settings of “continuous” and “on board computer” for the 997, but not on the Cayenne.

When I saw the Cayenne PCM screen posting, I checked ours. I can set two independently on the Carrera, but not on the Pepper.

Wonder why? Or, am I missing something obvious?
Old 04-21-2008, 08:37 PM
  #19  
mossjn
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1500 total miles, about 50% highway. The last 600 miles - only 15.6 mpg. How are you guys getting anywhere near 20mpg? I do drive a little "aggressively" but have stayed under 4200 rpm which more clearly defines the relative level of aggressiveness.
Old 04-21-2008, 09:40 PM
  #20  
Tinluver
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Just turnes 1000 miles, have not broken 17MPG.
Old 04-21-2008, 10:13 PM
  #21  
zedcat
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I just finished breakin and averaged 20.9mpg. I expect it will be down hill from here......
Old 04-22-2008, 10:17 AM
  #22  
cviles
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MPG varies widely depending on how the car is driven. Lately, I'm stuck doing almost entirely stop-and-go trips on surface roads and get about 14mpg or slightly less. My last road trip to Atlanta I was getting a little over 25mpg while doing politically incorrect speeds.
Old 04-22-2008, 11:52 AM
  #23  
CBnAT
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Just about 1200 miles. 17.3 is what the screen says.
Old 04-22-2008, 01:30 PM
  #24  
limey940
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here is the mileage i got driving to Atlanta for a track day

and what o got on the track in Alabama

Last edited by limey940; 01-10-2011 at 05:15 PM.
Old 04-22-2008, 01:44 PM
  #25  
AndreCT
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I have 3k on her, and the tripmeter says 14,5mpg. Have to check "continous" mode but do not think it will be much better.. 50:50 open road and in town. I do have a heavier than usual right foot possibly. Then again, looking at the responses, possibly not
Old 04-22-2008, 01:51 PM
  #26  
ashbad66
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9000 miles. Average speed 37. MPG 20.4. Get 26mpg at steady 75mph.


2006 Carrera 4
Old 04-22-2008, 02:00 PM
  #27  
9974G
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I have a base C2, not a C2S...so I didn't vote. But, for reference:

15.9MPG over 5100 miles (I never reset continuous since buying the car new a year ago). Average speed for the 5100 miles is 34mph.

I have no idea how some people get 20mph...let alone higher than that. I guess I'm having too much fun (but my wallet hates it).
Old 04-22-2008, 02:33 PM
  #28  
ELUSIVE
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Originally Posted by 9974G
I have a base C2, not a C2S...so I didn't vote. But, for reference:

15.9MPG over 5100 miles (I never reset continuous since buying the car new a year ago). Average speed for the 5100 miles is 34mph.

I have no idea how some people get 20mph...let alone higher than that. I guess I'm having too much fun (but my wallet hates it).
2nd.
My thoughts exactly.
Old 04-22-2008, 02:39 PM
  #29  
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I have a 05 C2 as well. On cruise control, for 50 miles or so, I can get up to 28-29 MPG, Boston to Hartford. Around town, 19.5 to 21.0. During Auto Cross, 16-19. By the time I get home from Auto Cross, it usually averages out 19-21. I actually got a bit better before the ECU upgrade, the headers, and the Evo airfilter.

The winter tires seem to lose about 1-2 MPG, but it may just be the cold starts.
Old 04-22-2008, 02:42 PM
  #30  
unclejosh
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Default Do you believe in miracles ?

If I cruise at 50 to 70 from Santa Cruz over 17 to Menlo Park, I can get as high as 25.5.

At a track day I got 12 mpg !

Also see milage thread at:

http://www.6speedonline.com/forums/s...light=miracles

Last edited by unclejosh; 07-18-2011 at 07:34 PM.


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