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07-01-2011, 07:16 PM
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#1 |
 
Drives: 2011 2SS/RS Convertible Join Date: Jun 2011
Location: Jackson, TN
Posts: 85
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Gas mileage with top down
Just curious to see what other people are seeing as far as differences in gas mileage driving with the top up vs top down.
I drove about 70 miles or so, 65mph most of the way with the top down and saw about a 1 mpg difference to the negative. Obviously you lose some of the aerodynamics with the top down and I'm not overly concerned with the loss of gas mileage (its just the nature of the beast) but was curious to see what other people are seeing. |
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07-01-2011, 07:39 PM
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#2 |
 
Drives: 2011 RS/2SS Join Date: Jun 2011
Location: Okotoks, Alberta
Posts: 381
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I haven't compared top up to top down, but I am sitting at around 26mpg with top down. Driving conditions were in hills and twisties.
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07-01-2011, 08:32 PM
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#3 | |
Drives: 2011 2SS/RS RJT Convertible Join Date: Jan 2011
Location: North Carolina
Posts: 375
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Quote:
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What is the one common thread in all of your failed relationships?
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07-01-2011, 08:51 PM
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#4 |
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Drives: 2011 RS/2SS Join Date: Jun 2011
Location: Okotoks, Alberta
Posts: 381
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Keep in mind, that is an IMP. gallon.
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07-01-2011, 09:45 PM
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#5 | |
 
Drives: 2012 CTS-V Sedan Join Date: Feb 2011
Location: Charlotte, NC
Posts: 739
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Quote:
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07-01-2011, 10:33 PM
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#6 |
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"Catharine"
Drives: '11 2SS/RS LS-3 IOM/IO vert Join Date: Mar 2011
Location: Southern NH
Posts: 2,132
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Drive like grandpa: Average speed 24.2 mph, 495 miles, avg 19.3 mpg (US gallon), Sunoco 93 with 10% ethanol, 80% top up
 , no burnouts , not over 3k RPM yet .
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07-01-2011, 10:55 PM
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#7 | |
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Drives: 2011 RS/2SS Join Date: Jun 2011
Location: Okotoks, Alberta
Posts: 381
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Quote:
I reset the fuel trip on each tank too. I am actually going on a road trip tomorrow and will put some miles on, we'll see what it does then. I don't push a new engine until about 3k...that's when i'll drop the first oil and flush all the break-in filings out!  This is not my DD either...all fun miles! |
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07-02-2011, 07:11 AM
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#8 |
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Drives: 11 2SS/RS M6 vert Join Date: Dec 2010
Location: NSB, FL
Posts: 705
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I drive it like I stole from day one. I've only driven it with the top up once for a few miles when it started to rain. It is a combination of highway and city with 17.7 mpg.
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LSA supercharger, Borla S-Type cat back, BMR/ Pedders Suspension, Kooks stepped LT's, GM 3.91, and RDP tune.
 Last edited by EM1/SS; 07-02-2011 at 04:36 PM. |
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07-02-2011, 03:46 PM
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#9 |
 Drives: 2ss/rs Black droptop Join Date: Jul 2011
Location: Pickerington, OH
Posts: 5
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Milage
I drove from Columbus, OH to upstate NY 21.6 mpg. PS I can't spell very well either.
Last edited by Deadwood; 07-02-2011 at 03:49 PM. Reason: wrong spelling |
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07-03-2011, 07:48 AM
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#10 |
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RIP - Convertible SS
Drives: '13 Mustang Boss 302 - RED Join Date: Apr 2011
Location: Houston, TX
Posts: 960
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16mpg here. 2600 mi on car.
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07-03-2011, 08:37 AM
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#11 |
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Drives: 2011 RS/2SS Join Date: Jun 2011
Location: Okotoks, Alberta
Posts: 381
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Just put 350 km on a one way of the trip and got a reading of 9.4 l/100 km. That turns out to be just over 30 mpg on imperial gallons. It works out at 25 mpg on a U.S. gallon. I'm ok with that!
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07-03-2011, 09:30 AM
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#12 |
 
Drives: 2011 SS Camaro Convertible Join Date: Apr 2011
Location: Laurel, MS
Posts: 3
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16-18 mpg with 2400 miles. But who's concerned about fuel ecomony, that's what hybrids are for.
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07-03-2011, 10:27 PM
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#13 |
 
Drives: 45th anniversary SS Vert Join Date: Dec 2010
Location: Houston, Texas
Posts: 269
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I get bout 16, top always down, normal driving, 15xxx miles
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07-03-2011, 11:20 PM
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#14 |
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Treasure Coast Camaro 5
Drives: 19 2SS vert, Mosaic Blk, A10 Join Date: Feb 2009
Location: Stuart, Florida
Posts: 4,565
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15 mpg city- 95% top down, 22 hwy... as for how I drive, well, I don't like traffic in front of me...
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