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Coupes & Convertibles Chevrolet Corvette Chevrolet Corvette Gas Mileage
26 messages, Last post on Nov 30, 2009 at 12:02 PM
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hi all! what is your average gas mil. on yr Vette out there? On paper, it says 28 hgwy, but i highly doubt it. This means, the Vette is more gas-efficient than the Z or even the new G35 sedan  Please advise. Thanks
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Replying to: richbf2 (Feb 22, 2007 8:24 pm) Base model/motor with 6 speed automatic. Car had about 2,000 miles on it. People have reported over 30 when driven conservatively at 60-65. |
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Replying to: richbf2 (Feb 22, 2007 8:24 pm) I took my first long trip in the Corvette over last Thanksgiving. Northeast of Atlanta ( Duluth ) to Carrabelle, FL – and back. Trip: Approx. 725 miles, mostly over 2 travel days. Average MPG = 28.25 ( Excel & DIC nearly identical ) My 2005 Grand Prix GXP ( 5.3L V8, 3600#, DoD 4-speed automatic) when well broken in managed approx. 24 MPG, on exactly the same trip and time of year, with essentially the same load & road conditions. This trip even included a couple of ‘demonstration’ acceleration runs: 15 MPH to 95 or so. NOT exactly the best conditions for fuel economy . . . Interesting – particularly given that the GXP’s Highway estimate is exactly the same as the C6 automatic – GXP is 18 \ 27 vs C6 = 17 \ 27. The one time I have had an opportunity to try for maximum, steady state MPG under near ideal conditions was on this trip to Florida. On a deserted stretch of Fla. 319 between Sopchoppy ( no, I am not making up that name ) and Lanark Village. Nearly level ( only a few feet above Gulf level ) and generally straight, almost no traffic & with only a few gentle curves. I tried several steady speeds. At 60 to 65 – 70 MPH, on cruise control, once the set speed was established - the instant MPG display would quickly stabilize at 32 ( plus or minus 1 ) I did not dare trying any higher speeds, as this is a rural 2 lane road & often patrolled. Conditions: Roughly 60 degrees & clear – A/C off. Car 2007 C6 Coupe A6 - Ray Happy with that fuel efficiency! |
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Replying to: rayainsw (Feb 23, 2007 4:17 am)
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Replying to: bolivar (Feb 23, 2007 4:49 pm) Z06 here, and I routinely get 27+ at 70-80 mph. Followed my sons towing a race car on a trailer to Michigan (interstates), average about 60mph---got 32+ mpg. I DO drive an economy car! |
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Replying to: bolivar (Feb 23, 2007 4:49 pm) little advantage in MPG. I've gotten 30mpg on the DIC going from Fernley, NV back to the SF bay area, now admittedly that is a lot of down hill but I wasn't going slow either. Best mileage using the calc and refills was 28.5 for a 500 mile round trip out to Yosemite and back. Then again I get around 7mpg when I go on track. My local average DIC is usually 22/24 with both freeway and local streets, gosh, sitting at lights will kill mileage. Randy
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Replying to: richbf2 (Feb 22, 2007 8:24 pm)
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Replying to: baldegl (Feb 28, 2007 10:07 am) is probably going to cut it by almost 2mpg based on what I see. |
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Replying to: starrow68 (Feb 28, 2007 8:44 am) I had to laugh at that one...I thought the same thing just idleing while getting out to get the mail from the mailbox. After I got back in the car a couple minutes later, the DIC dropped a half a mile per gallon average.... My 2004 Z06 seems to get a tad less than you folks have described here on the freeway. I'm running 32PSI in the tires, too. On a recent trip to Vegas from the LA area, I averaged 27 on the way there vs 27.7 on the way back, doing 70 to 80 MPH. The ambient temperature on the way back was from 95 to 60 degrees, with a slight headwind leaving Vegas. Since there wasn't anything else to do but watch the rear-view mirror and the other poor guys being pulled over by the CHP, I started experimenting w/ trying to maximize the mileage. The difference on the way back could be attributed to running in neutral on the down-hill sections to see what that might do. All in all, it's one fine economy car!!! (I should add that the A/C was on most of the time, although I even experimented w/ turning that off on the steepest up-hill sections, too.) |
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