Gas Mileage
Thread Starter
Instructor
Joined: Feb 2015
Posts: 110
Likes: 3
From: Temple Terrace Florida
My insurance, with the same coverage, only went up $21 every six month, so that really didn't come into consideration. I was really surprised, but I am a "senior" driver, drive less that 10K miles per year and have never had an accident or ticket. Been with State Farm for 30 years.
Team Owner
Joined: May 2004
Posts: 31,784
Likes: 2,413
From: DFW/Long Island
Melting Slicks
Joined: Nov 2007
Posts: 2,472
Likes: 75
From: Cleveland, OH
Haven't had the '14 on an extended trip since driving 800 miles from the dealer when I bought it in Aug and that doesn't count, but my '08 got 29.5 mpg on our honey moon to Charleston in '09 and my '09 Z06 got 28.5 to the NCM in 2011. Always got about 18mpg around town with both.
Team Owner
Joined: Sep 1999
Posts: 41,732
Likes: 1,717
From: Springfield MO
Haven't had the '14 on an extended trip since driving 800 miles from the dealer when I bought it in Aug and that doesn't count, but my '08 got 29.5 mpg on our honey moon to Charleston in '09 and my '09 Z06 got 28.5 to the NCM in 2011. Always got about 18mpg around town with both.
Pro
Joined: Dec 2014
Posts: 573
Likes: 91
From: Carlsbad, CA
Naaaa, I prefer to think he has a pair.
For fun, let's run this to ground (for the math purists out there, yes the numbers are rounded off and my estimates will most certainly vary):
C7 = 17mpg
Camry Hybrid = 35mpg
Delta = 18mpg
Estimate of annual miles driven: 15,000
Estimate of average fuel prices $2.50
Annual fuel cost difference between C7 and Camry = $1,133 year or about $94 month.
Putt-putt your C7 along in ECO mode @ 28.7mpg and the C7/Camry fuel cost difference lessens to: $235/year, or $19.58 a month. So, fuel cost difference wise, for what amounts to probably less than you'd spend for a monthly visit to Pizza Hut, you're driving a C7.
Now... let's talk fun factor:
C7 vs Camry?
For fun, let's run this to ground (for the math purists out there, yes the numbers are rounded off and my estimates will most certainly vary):
C7 = 17mpg
Camry Hybrid = 35mpg
Delta = 18mpg
Estimate of annual miles driven: 15,000
Estimate of average fuel prices $2.50
Annual fuel cost difference between C7 and Camry = $1,133 year or about $94 month.
Putt-putt your C7 along in ECO mode @ 28.7mpg and the C7/Camry fuel cost difference lessens to: $235/year, or $19.58 a month. So, fuel cost difference wise, for what amounts to probably less than you'd spend for a monthly visit to Pizza Hut, you're driving a C7.
Now... let's talk fun factor:
C7 vs Camry?
Drifting
Joined: Oct 2009
Posts: 1,599
Likes: 22
From: Whittier CA
Drove from Los Angeles to San Diego yesterday (probably at slightly above the posted speed limit - okay, maybe a little more than slightly over 
). Anyway, got over 31 MPG heading toward San Diego, drove around the town a little bit, and headed back. Ended up with 28.5 MPG when I pulled her into the garage. Love it!
). Anyway, got over 31 MPG heading toward San Diego, drove around the town a little bit, and headed back. Ended up with 28.5 MPG when I pulled her into the garage. Love it!
Le Mans Master
Joined: Jan 2006
Posts: 6,800
Likes: 2,653
From: Down south in Dixie
Naaaa, I prefer to think he has a pair.
For fun, let's run this to ground (for the math purists out there, yes the numbers are rounded off and my estimates will most certainly vary):
C7 = 17mpg
Camry Hybrid = 35mpg
Delta = 18mpg
Estimate of annual miles driven: 15,000
Estimate of average fuel prices $2.50
Annual fuel cost difference between C7 and Camry = $1,133 year or about $94 month.
Putt-putt your C7 along in ECO mode @ 28.7mpg and the C7/Camry fuel cost difference lessens to: $235/year, or $19.58 a month. So, fuel cost difference wise, for what amounts to probably less than you'd spend for a monthly visit to Pizza Hut, you're driving a C7.
Now... let's talk fun factor:
C7 vs Camry?
For fun, let's run this to ground (for the math purists out there, yes the numbers are rounded off and my estimates will most certainly vary):
C7 = 17mpg
Camry Hybrid = 35mpg
Delta = 18mpg
Estimate of annual miles driven: 15,000
Estimate of average fuel prices $2.50
Annual fuel cost difference between C7 and Camry = $1,133 year or about $94 month.
Putt-putt your C7 along in ECO mode @ 28.7mpg and the C7/Camry fuel cost difference lessens to: $235/year, or $19.58 a month. So, fuel cost difference wise, for what amounts to probably less than you'd spend for a monthly visit to Pizza Hut, you're driving a C7.
Now... let's talk fun factor:
C7 vs Camry?
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Racer
Joined: Jan 2015
Posts: 348
Likes: 56
From: Naples FL
I am sure that many people here don't care what the fuel efficiency is on our C7s but my wife certainly does....I gave up my Camry Hybrid that got 35+ mpg.
Anyway, around town in sport mode I get around 17-18 mpg and I think that's probably pretty normal. Today I made a 200 mile interstate highway trip in Energy mode and I got 28.7 mpg. For the most part I was running 70 mph in 7th gear @1500 rpm. Honestly I am impressed.
I know there are people that say, "Drive it like you stole it" or, "Don't be such a wimp", but I keep my sport/track mode for the surface streets. I don't see the need to be in anything other than Energy mode when cruising down the interstate, and it's easier on the wallet.
Anyway, around town in sport mode I get around 17-18 mpg and I think that's probably pretty normal. Today I made a 200 mile interstate highway trip in Energy mode and I got 28.7 mpg. For the most part I was running 70 mph in 7th gear @1500 rpm. Honestly I am impressed.
I know there are people that say, "Drive it like you stole it" or, "Don't be such a wimp", but I keep my sport/track mode for the surface streets. I don't see the need to be in anything other than Energy mode when cruising down the interstate, and it's easier on the wallet.
Racer
Joined: Jun 2014
Posts: 495
Likes: 43
From: Panama City Florida
Madison Wisconsin
Joined: Nov 2013
Posts: 504
Likes: 32
From: Madison Area WI
500 mile trip KY to WI @ 5 MPH over limit
Did a trip from WI to KY and from KY to WI over 500 miles each way.
Did not use cruse control.
But held it constant at 5 MPG over posted speed limits.
Eco mode did NOT increase MPG.
Results: Down - WI to KY 29.5
Up - KY to WI 32.2
Avg - 30.8
My best one yet.
Did a number of 27s 28s, 29s, and 30s, but the one back home was like, totally WOW factor in spades.
My Honda car and truck does not do this good.
Now, lets see what happens when the Lingenfelter engine is used.
Did not use cruse control.
But held it constant at 5 MPG over posted speed limits.
Eco mode did NOT increase MPG.
Results: Down - WI to KY 29.5
Up - KY to WI 32.2
Avg - 30.8
My best one yet.
Did a number of 27s 28s, 29s, and 30s, but the one back home was like, totally WOW factor in spades.
My Honda car and truck does not do this good.
Now, lets see what happens when the Lingenfelter engine is used.
Racer
Joined: Jun 2014
Posts: 495
Likes: 43
From: Panama City Florida
Quite bad.But in Eco and sleepy driving to work driving, it's more like 16 city. At 70+ eco doesn't help in 7th gear, but I think if I could resist zooms, it would get about 24.
The primary benefit of Eco seems to be at slower cruising speeds. High 20's might be possible in the 50's, but ain't no way I'm driving this car that slow for long periods of time
Burning Brakes
Joined: Jul 2011
Posts: 841
Likes: 72
From: NC
I noticed the same thing. When monitoring the Instantaneous MPG mode I can't tell any difference between ECO and Tour modes, also the little bump the C7 engine makes when switching between V4 and V8 modes bugs me a little bit so I just leave mine in Tour most of the time. Well..., unless I find myself on twisty roads. 
Pro
Joined: Dec 2013
Posts: 642
Likes: 41
From: Between Forest Lake and White Bear Lake in the Land of 10,000+ lakes
Per my DIC with 1385 miles with a M7, in Sport mode 98% of the time and shifting around 2500-3000 RPM's during normal driving, I have averaged 21.2 MPG so far driving around town about 80% of the time.
Racer
Joined: Jun 2013
Posts: 273
Likes: 50
From: Bellingham WA
Economy
I am sure that many people here don't care what the fuel efficiency is on our C7s but my wife certainly does....I gave up my Camry Hybrid that got 35+ mpg.
Anyway, around town in sport mode I get around 17-18 mpg and I think that's probably pretty normal. Today I made a 200 mile interstate highway trip in Energy mode and I got 28.7 mpg. For the most part I was running 70 mph in 7th gear @1500 rpm. Honestly I am impressed.
I know there are people that say, "Drive it like you stole it" or, "Don't be such a wimp", but I keep my sport/track mode for the surface streets. I don't see the need to be in anything other than Energy mode when cruising down the interstate, and it's easier on the wallet.
Anyway, around town in sport mode I get around 17-18 mpg and I think that's probably pretty normal. Today I made a 200 mile interstate highway trip in Energy mode and I got 28.7 mpg. For the most part I was running 70 mph in 7th gear @1500 rpm. Honestly I am impressed.
I know there are people that say, "Drive it like you stole it" or, "Don't be such a wimp", but I keep my sport/track mode for the surface streets. I don't see the need to be in anything other than Energy mode when cruising down the interstate, and it's easier on the wallet.
PS: That is better mileage than our 72 VW Super Beetle ever got.
Madison Wisconsin
Joined: Nov 2013
Posts: 504
Likes: 32
From: Madison Area WI
Does the supercharger drop MPG this much?
Looking at this site and others, I seem to be noticing a trend.
But I am not sure if it is real.
It seems that the Z06's are consistently not getting the MPG that the Z51 or standard C7 package is getting. A couple MPG drop at highway speeds seems to be going on, but not sure.
The Z06 is about 650/650 if I recall (somewhere in that range??) the Z51 is lower, in the 465 range if I recall???
So does the Z06 supercharger take that much additional power from the engine when in cruising mode? I can see this much and more of a drop if the foot is a bit heavy, but why should the MPG drop this much when in a flat cursing mode at 70 MPH?
Also, the Z06 supercharger looks a lot like the Edelbrock one. Does Edelbrock make the Z06 unit? Anyone know?
http://www.edelbrock.com/automotive/mc/superchargers/
Any ideas?
Nick
But I am not sure if it is real.
It seems that the Z06's are consistently not getting the MPG that the Z51 or standard C7 package is getting. A couple MPG drop at highway speeds seems to be going on, but not sure.
The Z06 is about 650/650 if I recall (somewhere in that range??) the Z51 is lower, in the 465 range if I recall???
So does the Z06 supercharger take that much additional power from the engine when in cruising mode? I can see this much and more of a drop if the foot is a bit heavy, but why should the MPG drop this much when in a flat cursing mode at 70 MPH?
Also, the Z06 supercharger looks a lot like the Edelbrock one. Does Edelbrock make the Z06 unit? Anyone know?
http://www.edelbrock.com/automotive/mc/superchargers/
Any ideas?
Nick
