2011 gt with 3.73's how's your MPG?
01-01-2011, 06:38 PM
#11
4th Gear Member
Join Date: Jun 2010
Location: Illinois
Posts: 1,846
Is the on-board MPG computation more accurate on the 11's than they typically were on the '05-'10s? The later were TYPICALLY off by around 1.5-2.0 MPG to the conservative (high) side so hand calculations were required to get actual fuel economy. Yeah, I know: there are a few 05-10 owners that have more accurate on-boards but those are more the exception than the rule.
01-02-2011, 01:16 AM
#13
Join Date: Jan 2009
Location: Tennessee
Posts: 4
We have 4.10s in our Auto 2011 GT and we get 27MPG. We got 26.8MPG on our way down to Cecil County Dragway, and ran mid-11's with bolt-ons and high 10's with a baby shot of nitrous:
How much HP are you have now? just to satisfy my curiosity.
Thanks
01-03-2011, 12:14 AM
#18
1st Gear Member
Join Date: Sep 2010
Location: California
Posts: 141
According to google, an imperial gallon equals roughly 1.2 US gallons. And converting the numbers above, that equals 19city/31fwy roughly. Still a bit optimistic. Maybe they tested the 2011 V6 automatic and used those figures for all estimates?
01-03-2011, 03:07 AM
#19
1st Gear Member
Join Date: Oct 2010
Location: New Jersey
Posts: 87
Is the on-board MPG computation more accurate on the 11's than they typically were on the '05-'10s? The later were TYPICALLY off by around 1.5-2.0 MPG to the conservative (high) side so hand calculations were required to get actual fuel economy. Yeah, I know: there are a few 05-10 owners that have more accurate on-boards but those are more the exception than the rule.
lol
01-03-2011, 05:56 PM
#20
1st Gear Member
Thread Starter
Join Date: Apr 2008
Location: Daytona Beach Fl
Posts: 145
Thanks to all the others for your info. I'm getting about the same as you are. So the 3.73's won't impact the MPG's too much. When I installed the gears in my 2008 I didn't have it with the stock gears long enough to get a good compairison. I'll probably do the gear change.
