Stone17

iTrader: (3)

Post your MPG.
Want to see what you guys get.

Here mine:

Miles : 255.5
Gas : 16.911 gal.
MPG : 15.10

Miles : 253.3
Gas : 16.454 gal.
MPG : 15.39

This is the best so far. Was shifting at 2300 rpm.
Miles : 302.8
Gas : 16.532 gal.
MPG : 18.31

mhhamrhead

iTrader: (4)

Only 3 fillups so far since I picked up my '05.

All between 15-17mpg.

tityrous

on the highway i average between 22-24

BacDoc

iTrader: (2)

Hwy I could get 25 mpg. City was about 17-19 and that was driving with spirit.


My M5 gets 20 hwy with a very light foot. And somewhere between 6-9 city. Lol

Stone17

iTrader: (3)

I drive about 75% highway and about 25% city.

GhettoTy

iTrader: (2)

I'm around 18 city and 24 highway, with very spirited driving. I could get 19/25 if I tried, but driving is to fun for that so I enjoy myself. I do about 60/40 city to highway.

KamaSutra

My CTS-V provides 5.7L of LS6 fuel efficiency! This is combined highway and city. Skip shifting and very moderate throttle. If its just city driving I can manage 19-20 mpg if I don't drive hard.

itsslow98

iTrader: (18)

15-17 city, 24.5 highway doing 80-85mph. i actually get better mileage on the highway with the cam, long tubes and nitrous tune then i did bone stock and its by 2mpg.

06 6.0 GTO

What the helll? How is the Vs MPG so much worse??

Im stock and in town with regular driving its around 17-16 and on the highway its usually 28 on average with 31 if i try. Am i missing something here?

ColeGraham

iTrader: (8)

yes you are...

gearing, TB, and drag

final drive in the GTO is 3.42, and it is 3.73 in the V. and i believe that the GTO has a different TB then the V. the LS2 that is in the GTO is also different from the V, if my reading hasnt or my dad hasnt lied to me. the LS2 that the 05-06 GTO ran has the Holden variation of the LS2 called the L76. the big difference in the 2 is the TB, LS2 has 90MM and L76 has a 78MM. i could be wrong about that, so if i am my bad. also, since the goat is lower slung and i believe is has a lower drag coeffient then the V.


EDIT: My bad, G8 uses the L76. but i still think the GTO has a smaller TB.

TriGuy

iTrader: (1)

Just highway I get 25mpg mix of city and highway I get 20mpg. Better than my old Harley F-150 that got 13 mpg on the highway...

jerrycecco

From my last track event, I think I got about 9mpg
do I win a prize? say a tank of gas?

couple summers ago I drove to Neb from TX and got 26mpg with 3 people in the car and full trunk of luggage...

--Jerry

GhettoTy

iTrader: (2)

I think it's mostly gearing and the extra 250lbs. At 80 i'm at 2k rpms compared to the goat which is probably around 1700. Aero has some to do with it too, to lazy to actually look up the drag coefficients but I'm betting the goat's is much better than the boxy V.

Edit: Found it, 04 GTO= .31 04 CTS-V= .36

06 6.0 GTO

3.46* rear.

And i believe it would be the drag if anything and the weight a bit because im at 2k rpms at 70mph in 6th gear, the trans is an MN12 with a 3.46 rear.

Heres a pic of me at 59mph in 6th gear at 1500rpms or so. My gears are a lot shorter then an F bodies.

CTSV_510

iTrader: (1)

Stock I got about 16 city / 24 highway, after headers about 14/22 and now with the maggie I get about 12/20.

shadyLS6

yea cause all of you bought the V for MPG...

my highway mpg went up to 24~22 after headers + tune

bamacaddy

iTrader: (1)

I feel ya there...I could've bought a lot better mpg car.....but I GOT A V! I did 25.6 mpg @ 85 on a trip from Bham to New Orleans last week....around town I average about 19-20.....On a Saturday night about 12mpg

scatillac

iTrader: (12)

Even with the big motor, I get pretty close to that if I stay out of it. It pays to have a good tuner (edcmat-l1).

Around town-short trips falls to about 13-14 with a few hard trips through the gears.

Stone17

iTrader: (3)

My friend has a 04 GTO and gets around 19 city/highway.

devilized V

I get about 14-16 on average with only K&N CAI, Magnaflow CB and Tune. Drive it like you stole it... If you get 20+ MPG please sell your car.