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  #1 (permalink)  
Old 10-11-2007, 10:06 PM
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CS - avg mpg

Have a 6 speed CS with only 4K miles on it, avg mpg on the cpu is showing 12.1 I drive daily in heavy city traffic though. One tank last me on avg about 190 miles. Could there be something wrong with my car? Thoughts? Similar experiences?
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Old 10-11-2007, 10:17 PM
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There is a ton of information on Cayman mpg - see the threads below. A search will likely yield a lot more.

AS to my experience, after the rings fully seat (approx 8,000 miles) and with mixed driving, I get about 16MPG. I do not commute or drive in heavy traffic usually, though I do drive in city scenes, lights, stop signs, higways, freeways, etc.
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  #3 (permalink)  
Old 10-11-2007, 10:18 PM
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mine is reading 20.2 mpg
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  #4 (permalink)  
Old 10-11-2007, 10:21 PM
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Seems pretty low to me. I regularly get 19.5-22mpg on my CS. On my track days last month I was getting 14mpg at 90-130 mph.
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Old 10-11-2007, 10:23 PM
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18mpg on my 1st tank and I drive pretty fast.

I bet I can get 20 if I stay off the throttle.

If you do better than 19-20 you are driving too slow
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Old 10-11-2007, 10:31 PM
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Around 19mpg per tankful.
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Old 10-11-2007, 10:46 PM
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Guys: Mileage info is worse than useless if you do not state if you have Cayman or Cayman S, manual or Tiptronic. There is a huge spread between the parts of this matrix.
For first 700 miles on my Tiptronic Cayman, driving almost exclusively in suburbs, I averaged 20.3 MPG.
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Old 10-11-2007, 11:25 PM
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Quote:
Originally Posted by Fredyy View Post
Guys: Mileage info is worse than useless if you do not state if you have Cayman or Cayman S, manual or Tiptronic. There is a huge spread between the parts of this matrix.
For first 700 miles on my Tiptronic Cayman, driving almost exclusively in suburbs, I averaged 20.3 MPG.

Kind of surprise, I would think the Cayman (non S) would get better mpg...

Mine, Cayman S, 06, Tiptronic, average about 18 - 21 mpg. This is with a lot of heavy back to back freeway traffic during the week. With occasional fast highway driving. I do try to watch the mpg and not push the car agressively when I am stuck or have no chance to drive fast. But when the road opens up, I do push it.
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Old 10-11-2007, 11:34 PM
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Cayman S:
Phoenix City ~ 18.0 MPG
AZ Highway (81MPH) ~ 25.0 MPG
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Old 10-11-2007, 11:35 PM
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Country folks with no stop & go driving get way better MPG than city folks. See some of the hundreds of earlier threads on the subject.
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Old 10-11-2007, 11:58 PM
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Quote:
Originally Posted by Fredyy View Post
Guys: Mileage info is worse than useless if you do not state if you have Cayman or Cayman S, manual or Tiptronic. There is a huge spread between the parts of this matrix.
For first 700 miles on my Tiptronic Cayman, driving almost exclusively in suburbs, I averaged 20.3 MPG.
Quote:
Originally Posted by stormtroopar View Post
Kind of surprise, I would think the Cayman (non S) would get better mpg...

Mine, Cayman S, 06, Tiptronic, average about 18 - 21 mpg. This is with a lot of heavy back to back freeway traffic during the week. With occasional fast highway driving. I do try to watch the mpg and not push the car agressively when I am stuck or have no chance to drive fast. But when the road opens up, I do push it.
You really do have to specify your type of driving, how much of each, etc., to get a good sense of how your average can compare to thers' averages. Or, you need to specify your mileage for each type of driving condition. What a mid-Western city may have for "city" driving will be way different from my Silicon Valley morning commute. Driving interupted by stoplights is much different from 20 minutes of crawling at 5-9 mph.

Having said that - I've not reset my mpg reading in the last 3000 miles, and I'm averaging 20.9 mpg. sometimes it reads as high as 21 mpg. I have a 2.7 with the 5-speed manual transmission.

Of the 3000 miles, I've had perhaps 1200 miles of true highway cruising (at normal frewway speeds a bit over 65mph), another 800 or so of somewhat more aggressive driving, and the last 1000 miles in my (almost) daily commute drive of 16 miles each way.

The commute drive does the most damage to my mileage. Of the 16 miles, I spend approx. 6-7 miles (8-9 on a really good day) at 60 mph. About 6 miles crawling and bumping along at between 5-15 mph with a lot of idling time. The rest is city streets with the normal complement of traffic and stoplights.

Based on observation (not rigorously documented) I think I get about 15 mpg in the stop-and-go crawl, 20 on the street with stoplights and 23-25 on the open road. The open road figure is borne out by distance and fuel load readings when doing my long drives.
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Old 10-12-2007, 12:07 AM
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I have noticed with my Tiptronic CS that if you drive it in manual mode, you can watch the fuel gauge drop very quickly, if you leave it do its own thing, the mpg goes up greatly.
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Old 10-12-2007, 12:08 AM
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I don't deal with stop & go traffic in my area. Mostly country roads and the interstate. I reset the mpg with every fill-up and never get less than 19 or more than 23. I have as S with Tip.
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Old 10-12-2007, 12:46 AM
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20.6 Mpg

I just passed my first 1,000 miles today and I'm at 20.6 mpg.
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