MPG

[JimE69]

I'm curious if anyone has the mpg specs for the various gears. The website lists 17/26 for the manual tranny, but that is likely with the standard 3.31 gears. Anyone have information on the 3.55's and 3.73's?

 

[trackpack]

i don't have the numbers, but after the first few days with my GT (3.73s), i'm looking at 16-18mpg combined... my commute to work is pretty stop and go, not much cruising speed.

 

[Undisputed]

I'm curious if anyone has the mpg specs for the various gears. The website lists 17/26 for the manual tranny, but that is likely with the standard 3.31 gears. Anyone have information on the 3.55's and 3.73's?

w/ my 3.73's and a 5 speed w/ full exhasut, drop in filter and BAMA race tune i would see 23.4-24.2 on the highway.. meaning on very long extended trips, stayin around 70mph for hours

now, w/ the same stuc, but w/ my Vortech V3 intercooled blower I drove back from CAlifornia, and, beleive it or not, 3.73's, full exhaust, and an 11lb blower, with the same 70-8mph for hours on end I was between 21.9 and 23 the WHOLE RIDE BACK... I remeber when gears and a blower meant 10mpg or less..lol

 

[Undisputed]

I'm curious if anyone has the mpg specs for the various gears. The website lists 17/26 for the manual tranny, but that is likely with the standard 3.31 gears. Anyone have information on the 3.55's and 3.73's?

But, to answer your question better, lol... The dealer said 3.31's will yield about 1mpg better than 3.55's and 2 better than 3.73's... HOW MUCH OF THAT BEING ACCURATE, I dont know.... but w/ my 3.31's then my 3.73's (as the only variables) I think the only reason i got worse milaege around town was cuz I was laying out ruber everywhere.. I DONT THINK THE MPG IS AT ALL SUBSTATIAL BETWEEN 3.31-3.55-3.73, It's just how u drive the car...

 

[stangdude2000]

I'm curious if anyone has the mpg specs for the various gears. The website lists 17/26 for the manual tranny, but that is likely with the standard 3.31 gears. Anyone have information on the 3.55's and 3.73's?

Based on the 3.73's, I'm guessing you are referring to the 2010's, so I'm not 100% on those, but I can give you my experience for the 2008's. I had the 3.55's, and I got as high as 30 MPG highway on a 280 mile trip going 70-75 mph. Around town would be 15-17 depending on driving style (sometimes less if I was really having fun), and my combined driving would net around 22 MPG. I had no other mods besides SLP Loudmouths - aka muffler deletes - and a K&N.

 

[JimE69]

Thanks for the replies. I'm looking at ordering a 2011 5.0 and trying to decide on which gear to go with. I was looking at the 3.55's, but was trying to get an idea on mpg before I jump on the 3.55's or 3.73's. As it doesn't appear to be much difference, I'll likely go 3.73's.

 

[Sparty92]

Based on the 3.73's, I'm guessing you are referring to the 2010's, so I'm not 100% on those, but I can give you my experience for the 2008's. I had the 3.55's, and I got as high as 30 MPG highway on a 280 mile trip going 70-75 mph. Around town would be 15-17 depending on driving style (sometimes less if I was really having fun), and my combined driving would net around 22 MPG. I had no other mods besides SLP Loudmouths - aka muffler deletes - and a K&N.

+1

But since I put fat tires on my car, I did notice about 1-2mpg drop in overall driving.