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fp_vetter07 
Standard Member
Vette(s):
07 Machine Silver Coupe
6 sp pattle shift auto
72 Stingray convertible
Joined: August 06 2008
Location: Copperas Cove, TX - USA
Posts: 48
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 Topic: Gas mileage
Posted: July 23 2009 at 5:23pm |
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What's the best gas MPG you have had?
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BlueFizzy
Standard Member
Vette(s):
2009 Cyber Gray
Joined: January 12 2009
Location: Medford, OR - USA
Posts: 3
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Posted: July 23 2009 at 9:07pm |
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Best I ever got was 29.3 by the computer. This was going through several passes on I-5 with the cruise set at 70. Once I got to my destination I ruined it by having a little fun on a back road!
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Sherlock Holmes
Standard Member
Vette(s):
2008 Corvette Coupe
Joined: July 19 2009
Location: York, PA - USA
Posts: 4
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Posted: July 24 2009 at 6:46pm |
2008 Coupe LS-3 Corsa Extreme Exhaust with Crossover pipe and Vararam Intake System. Mileage on PA turnpike with cruise set at 63MPH...34.2MPG. Not bad for a car that will go about a zillion miles per hour. Cheers Sherlock
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Redball
Standard Member
Vette(s):
2005 6 sp Coupe
89 Coupe
Joined: August 30 2004
Location: Aiken, SC - USA
Posts: 34
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Posted: July 25 2009 at 2:22pm |
I have a 2005 6 speed coupe and the best overall mileage I racked up on a 800 mile Interstate run was 27.5 when it was four months old. I have not been on any long trips since.
Could it be the 10% eythenol content of Amoco White 93 Octane? My new 3.8 liter Buick has gotten approximately the same % drop, on the same run, compared to a previous 3.8 liter Buick.
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tgstoner
Standard Member
Vette(s):
Machine Silver 2007 roadster
Joined: July 18 2009
Location: Dexter, MI - USA
Posts: 8
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Posted: January 06 2010 at 10:37am |
Greatest per mile gallon figure for a tank: 26.879 (6/11/08)
Greatest distance on a tank: 421.0 miles (11/13/2009; 15.918 gallons; 26.448 mpg)
Overall MPG since new: 22.696 mpg (80 miles (5/22/2008) to 15,775 miles (12/5/2009))
Highest price paid per gallon: $4.449 (7/3/2008 - Sunoco 93 octane)
Lowest price paid per gallon: $2.189 (4/10/2009 - Shell 93 octane)
Average price paid per gallon in 15,695 miles: $3.358
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anthonym
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Joined: November 18 2009
Posts: 3
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Posted: January 31 2010 at 10:23am |
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i bought a 2006 coupe with 12000 miles, gas milage best number so far is 21.6mpg on the highway "65mph" the car now has 13300 and 21.6mpg is tops. do you think something might be wrong with this car? i am the second owner and thought i would be getting much better gas milies right out the gate. any ideas, comments are very welcomed
thanks,
anthony
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Davetx
Standard Member
Vette(s):
2001 Convertable
2005 Convertable Loaded
2010 Grand Sport Convertable Loaded
Joined: November 14 2003
Location: Canyon Lake, CA - USA
Posts: 36
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Posted: February 01 2010 at 10:23am |
You fuel injectors may be clogged. Try running Chevron with Techron gasoline and additionally adding some Chevron Techron/Fuel Injecter Cleaner to your tank. Costco sells it at a discount. I had a 86 that had one injecter completly clogged and that opened it up. Since then I only run Chevron or Shell (has additive). Presently I have a 2001 convert, a 2005 convert both with the Z51 (lower rear end gear ratio) and a 2010 Grand Sport convert. The first two see 25 - 27 mpg but the GS does not do as good, maybe due to the wider body and tires. I bought it in Texas and brought it to CA. At the beginning of the trip I was getting 20 and at the end 23. I was doing 80 mph where I could driving the speed limit plus 5 mph.
Dave
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hoganj
Standard Member
Vette(s):
2007 Coupe
LeMans Blue
Joined: December 16 2009
Location: Minot, ND - USA
Posts: 2
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Posted: February 02 2010 at 7:51am |
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Picked up my 07 in Carol Stream Illinois and headed back to North Dakota. Maintained 5mph above the limit all the way to Fargo and got 28.3 mpg with a minimum amount of playing. Once inside North Dakota I played a lot and got 27.5 mpg!
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redraider
Standard Member
Vette(s):
2005 Convertable Red/Blk
Joined: January 26 2009
Location: Elberta, AL - USA
Posts: 2
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Posted: February 02 2010 at 8:58am |
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I consistently get 25/26 mpg on my '05 Convertible running between 70-75 mph. Most folks are amazed at the gas mileage!
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FrankM
Standard Member
Vette(s):
2008 C6 Coupe, LS3, Blk/Blk, 6M Z51, 3LT, Chrome Wheels
Joined: October 10 2006
Location: Williston Park, NY - USA
Posts: 15
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Posted: February 02 2010 at 9:10am |
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Whether you have a manual or automatic transmission also makes a difference.
With the type of driving that I do here on Long Island, I noticed about a 2 to 2.5 mpg difference between my '07 with an automatic transmission and the '08 with the manual transmission (25mpg to over 27 mpg). Other differences are that the '07 had the LS2 engine, and the '08 has the LS3 with the Z51 manual transmission which has the taller gear ratios (about 10 to 14 percent) in the first four gears.
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anthonym
Standard Member
Joined: November 18 2009
Posts: 3
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Posted: February 03 2010 at 11:04am |
thanks everyone..
my 06 is a coupe with auto and stock tires. everything is stock. i only drive the car about 3 time a month, but its highway driving. about 35miles each way. i guess with 13000 miles the gas miliage is the best it will get. the car has NEVER been over 80 to my knowlege. the origional owner became sick the car was in storage for over a year and a half. he was 70 and never drover over the speed limit...
the car was garage kept and covered, i just had to charge the battery and if fired right up. i will post some picks. the tire were old so i put on new firestone run flats and drove away a happy man.
maybe gas mileage will get better, i think i'm going to replace the plugs with the E3's and change ALL fluids since it was sitting for so long....
any advice, comments are welcomed..
thanks,
anthony
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Vettegeezer
Standard Member
Vette(s):
Ron Fellows edition, Daytona 2007 Pace Car markings; Artic White, convertible.
Joined: April 13 2010
Location: Sebring, FL - USA
Posts: 8
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Posted: April 16 2010 at 3:30pm |
Out on the road, cruise set at 70MPH I get between 30-32 MPG instant, and about 27 MPG average. In the city, the average drops down to 21 MPG, but then I like to floor it as soon as a light turns green, and accelerate to the posted speed limit for that road.
My vette has an automatic 6 speed with the paddle shift. I normally drive it in the "S" setting (it shifts at a bit higher rpm.
Rene
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anthonym
Standard Member
Joined: November 18 2009
Posts: 3
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Posted: April 17 2010 at 6:36am |
Hi,
my issue is I drive it like an old lady and only 21 MPG average on the highway at 70, 18 in the city . as i read message boards i'm thinking that my 2006 auto has the worst gas millage on the road.
does the millage of the car effect the gas millage? I have 13500 so far...
thanks,
anthony
Edited by anthonym - April 17 2010 at 6:39am
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Vettegeezer
Standard Member
Vette(s):
Ron Fellows edition, Daytona 2007 Pace Car markings; Artic White, convertible.
Joined: April 13 2010
Location: Sebring, FL - USA
Posts: 8
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Posted: April 17 2010 at 12:21pm |
Anthony: Miles should not be a factor. My '07 has 25,000 and is now getting the best mileage per gallon ever. What does your onboard computer show when you are driving, such as the instant fuel economy? What engine and transmission do you have, and how do you normally drive it? I have the regular 6.0 liter 400 hp engine with an automatic 6 speed paddle shifter. I have modified the exhaust (Magnaflows) and have a BBK cold air intake. I have not changed the air mass meter. As I said, in the city I get about 18 to 20 mph, but a good 30 to 32 on the open road. The best setting I have found is cruise control set at 70 in the open highway.
Rene
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Rene
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fp_vetter07
Standard Member
Vette(s):
07 Machine Silver Coupe
6 sp pattle shift auto
72 Stingray convertible
Joined: August 06 2008
Location: Copperas Cove, TX - USA
Posts: 48
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Posted: April 22 2010 at 8:48am |
Well it looks like we all have about the same mpg. I also get about 30-32 at 70mph on highway and have gotten as good as 21.5mpg in town,(not very often). 
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cpal1843
Standard Member
Vette(s):
2007 Lemans Blue Metallic C6
Coupe
Z51
3LT
NAV
Automatic
10,000 original (and loved) miles
Joined: April 17 2009
Location: West Melbourne, FL - USA
Posts: 3
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Posted: April 27 2010 at 8:42am |
I have a 2007 Z51 with automatic. K&N cold air kit and throttle body spacer are my old real mods here. Always 22-23 MPG in the city and 31-33 MPG highway (regular gas, no premium here)
I run Royal Purple synthetic oil always, which I know really helps but I truly believe that the K&N cold air kit with the throttle body spacer are helping it breathe here. Remember that an engine is nothing more that an a big air pump, so if you can make it better to inhale and exhale, you are making it more efficient.
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Paul August
Standard Member
Vette(s):
2006, C-6, VELOCITY YELLOW COUPE
Joined: June 21 2007
Location: LANCASTER, NY - USA
Posts: 7
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Posted: April 27 2010 at 12:17pm |
CPAL1843.
Please advise model numbers of the K&N cold air kit as well as the throttle body spacer.
Thanks,
Paul August
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Paul August
Standard Member
Vette(s):
2006, C-6, VELOCITY YELLOW COUPE
Joined: June 21 2007
Location: LANCASTER, NY - USA
Posts: 7
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Posted: April 27 2010 at 12:19pm |
CPAL1843,
Please advise Model numbers of the K&N cold air kit as well as the throttle body spacer.
Thanks,
Paul August
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cpal1843
Standard Member
Vette(s):
2007 Lemans Blue Metallic C6
Coupe
Z51
3LT
NAV
Automatic
10,000 original (and loved) miles
Joined: April 17 2009
Location: West Melbourne, FL - USA
Posts: 3
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Posted: April 27 2010 at 12:34pm |
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honu
Standard Member
Vette(s):
08 Coupe, Atomic Orange Metallic
Joined: April 30 2010
Location: St. George, UT - USA
Posts: 3
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Posted: April 30 2010 at 7:46am |
I drive an 08 Atomic Orange Metallic coupe, totally stock, about 25000 miles on it. It is a daily driver, plus some autocross and drag racing. I get 19 in town, 29 to 30 on freeway trips. This is based on ACTUAL MEASUREMENT and calculation, and NOT on the dash display. The calculation in dash display always measures higher than it really is, by 1 to 2 mpg. This was also true with my C4 and C5. I'm not sure whether it is set this way to make you think it is better than it really is, or whether it has something to do with the way the fuel metering gauges work.
My 29 to 30 is based on freeway driving with cruise set at 80 mph. In Utah our limit is 75, although there are some stretches where the legal limit is 80. If the limit is 80, I set cruise at 85 to 88.
dan
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