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Chevrolet Corvette Gas Mileage

26 messages,  Last post on Nov 30, 2009 at 12:02 PM

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#17 of 26 Problem with worring about mpg ... by starrow68 Nov 04, 2007 (5:30 am)
Best method of improving mileage as we all know is to slow down. Problem with that is how long a trip takes. Now I don't mind a few extra minutes locally when I plan for it, but on a long trip it can makes hours of difference. Ten miles per hour for a 7 hour trip puts you in about an hour earlier and if that costs 2 mpg, then it's under $10 cost. That is one of the cheaper hours I'll ever get. Randy Replies to this message: motorhead1 (Nov 04, 2007 5:17 pm)
#18 of 26 Re: Problem with worring about mpg ... [starrow68] by motorhead1 Nov 04, 2007 (5:17 pm)
Replying to: starrow68 (Nov 04, 2007 5:30 am) I made a trip to East Tn. this weekend (800 miles) and got an average of 30 mpg. 75 mph. in my 2007 C6. This is a great car to drive on a trip.
#19 of 26 Mileage varies based on mods by silverback4 Feb 20, 2008 (6:01 am)
My A4 2003 coupe got 29.5 mpg straight highway, and in the lower 20's around town with the stock 2.73 rear. Recently, I changed to a 3.42 ZO6 rear for better performance.The car definitely is faster, but the mileage has dropped several mpg. It's still better than any other performance car out there. If you're worried about mpg, by a Prius. If you want $ for $ performance, and pretty good mpg, get a vette. Replies to this message: carone (Mar 02, 2008 6:16 pm) starrow68 (Mar 04, 2008 9:03 pm)
#20 of 26 Re: Mileage varies based on mods [silverback4] by carone Mar 02, 2008 (6:16 pm)
Replying to: silverback4 (Feb 20, 2008 6:01 am) The gas mileage seems very good for an 8 cylinder car. I've been staying away from 8 cyl engines because for me - gas mileage is a big   consideration. I want to put miles on a car but don't have unlimited funds for gas. Why would a vette have better mileage than a G35, Z, & many other 6 cyl cars? Are the gas mileage results that anyone is getting calculated by the car's   computer - or by manual calculation?     (How does the car gas mileage calculator work?).   With the gas mileage that people are getting, maybe I'll take my civic si money   & put it towards a vette (now - how about insurance costs) Replies to this message: starrow68 (Mar 04, 2008 9:03 pm)
#21 of 26 C6 MPG by rayainsw Mar 03, 2008 (4:29 am)
A large part of the reason is that the Corvette is geared for reasonable fuel mileage at cruise. Approx. 1550 RPM at 70 MPH in both the M6 and A6. This allows the V8 to “loaf” at stead highway speeds.   City driving & ( many ) bursts of WOT will absolutely result in poor fuel mileage.   Although the DIC in my Corvette has proven quite accurate, my calculations and posted MPG are always the result of plugging actual miles & actual gallons into Excel. Overall average right now ( after over 20,000 miles ) on my 2007 A6 Coupe stands at: 21.8 MPG And that includes a generous portion of stop \ slow traffic driving each week – commuting in & out of MidTown Atlanta.   My best full tank was with my Daughter & long weekend luggage in the car on a drive from near Atlanta to the Gulf Coast \ Panhandle of Florida and back: 29.04 MPG and 467 miles.   Regarding insurance – my Corvette ( Daily Driver & approx. 15,000 miles per year ) actually costs me about $25/year ** LESS ** than my previous car – a Grand Prix GXP ) . . .   Good luck. - Ray Never expecting Civic SI city MPG . . .
#22 of 26 Re: Mileage varies based on mods [carone] by starrow68 Mar 04, 2008 (9:03 pm)
Replying to: carone (Mar 02, 2008 6:16 pm) The key to good mileage as noted is to stay off the throttle. Also, I think the 6sp will get better mileage than the auto, which has two rear end ratios. One is pretty good for mileage and the other is not very good in the auto. This is for C5's but is probably close for the c6 as well. My best trip was close to 30mpg from Fernley, NV to the SF bay area, which of course has lots of down hill , and that was pencil and paper calc. Mileage drops off as you start to push past 70mph, as would be expected. Randy
#23 of 26 '09 Auto Coupe by dwarfl0rd Jun 01, 2009 (5:50 pm)
I have a '09 Auto Coupe C6 Vette with 5,xxx miles on it. I just took a 1,3xx mile trip from Va. to TN and back and I averaged 31MPG for the entire trip. Wait till this car is broken in! I also averaged 70.4MPH. This car gets great Hwy fuel economy because its revs are so low. My car has 430+HP and is the most efficient Hwy car I own. City driving is not so good. Im in Stop/Go traffic the whole 12 miles of my commute to work and get about 18MPG, which is not bad at all for that kind of driving.
#24 of 26 2008 MPG by gearup72 Jun 16, 2009 (7:00 pm)
I have a 2008 corvette base with Auto, F55, and dual mode exhaust.   I get 25 to 27 MPG on the highway at speeds of 70-80.   I get 20 to 22 MPG in mixed driving.
#25 of 26 93 Ruby she get's about the same by gmscam Sep 02, 2009 (4:05 am)
My baby averages 17-19 city and log hauls 29 give or take a a mile. Don't really watch it that often or notice changes with speed but that's pretty consistant for her when I do check. Glad to know I'm not crazy when I tell people what I'm getting they say can't be.
#26 of 26 surprisingly good. we are both impressed by kentmagnuson Nov 30, 2009 (12:02 pm)
Replying to: richbf2 (Feb 22, 2007 8:24 pm) Wife and I driving our first Vette. Is a 2010 LT2 coupe with manual tranny. We just got the car a week ago. Getting 34mpg at 65mph and 25mpg at 80mpg. We are sure surprised and happy with that.

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