View Poll Results: What is your combined MPG?
Voters: 129. You may not vote on this poll
Fuel economy on a 997 C2S?
#16
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
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!!!!!
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!!!!!
#17
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
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.
usual disclaimers apply: professional driver, closed course, YMMV, not valid in NY, NJ or for any non-resident Yankees fans.
#18
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
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?
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?
![Confused](https://rennlist.com/forums/images/smilies/confused.gif)
#19
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
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.
#22
Unique Title
Rennlist Member
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
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.
#25
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
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
![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
#27
Burning Brakes
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
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).
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).
#28
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
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).
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).
My thoughts exactly.
#29
Rennlist Member
Join Date: May 2007
Location: Uxbridge, Ma
Posts: 74
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
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.
The winter tires seem to lose about 1-2 MPG, but it may just be the cold starts.
#30
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
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
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.