Recon111

I know owning a GT is not about gas mileage. But I have been thinking about Gears/tune/and intake mods and am scared because of the 4-5$ gallon gas for 93 octane coming.
If our stupid government officials would just take crude oil off the futures market and let oil companies start up new refineries we would have $1.00 gallon gas again. But that's a different subject.
You guys that have done gears/tune, exhaust/intake etc. what is your gas mileage now.
I know that even stock my mileage sucks. The sticker says 18-25, but that is coasting down hill. If I stand on it threw 1-and 2 you can see the gage go down. I guess I need to buy a Honda, Yea, that will happen.

Nuke

Is this a rant or are you thinking you can gain anything significant?

At the very least, why not get a lower octane custom tune (if you don't already have one or 2)? Even a custom 87 tune will run cirlces around the stock tune. But if you're really desperate and don't mind little old ladies popping you the bird to get out of their way, get an economy tune. Gears to improve fuel mileage is a rather drastic way to improve mileage since they'd have to be lower ratio and pretty much take away from the purpose of even OWNING a 5.0.

Other than that, you can try those things posted more times than you blink; tire pressure, granny driving, improve your timing/coasting skills, WALK, or simply save money elsewhere to cover gas; pack your lunch, drink water (vs soda), make your own coffee (vs Starbigbucks), yada yada.

Recon111

Rant?????????
I asked "You guys that have done gears/tune, exhaust/intake etc. what is your gas mileage now."
The gears I was talking about was not for mileage, If I change gears it would to 4.10s, The tune and intake would be for performance not mileage.
I only drink spring water, I run every day(well every other day), never coffee.
If you did those mods I just asked what is your mileage?

Nuke

Sorry. When I read "...am scared because of the 4-5$ gallon gas for 93 octane coming" I immediately thought you were looking at ways to save gas. Never mind.

JimmyM

Where can I read up more on that?

Recon111

Jimmy
Do a google for futures market and crude oil.
Google New oil refinery environmental restrictions. Any more questions about this, PM me. Thanks

JIM5.0

I just got my 87 octane tune a couple of days ago. Havent finished a full tank yet but I am hoping it did increase fuel economy. I do feel notice a power increase though. But I purchased this tune for daily driving purposes

Milspec

I can't speak to your 2011 with the 5.0, however I'll give my experience.

2007 4.6, no tune, stock intake, 3.31 gears, manual trans...consistently got about 17-18 city driving, and I mean city, stop and go between Fort Worth and Dallas (Addison)...

Now have a 2010 4.6, 93 octane performance tune, stock intake with K&N, 3.73 gears, manual trans....consistently getting 15 in the city... but we've moved so the drive is much less and the car runs for shorter periods of time which may attribute to lower mpg.

My outlook is that the ~$0.30 difference in price between 87 and 93 amounts to about $4 more per tank for the amount of gas I put in (usually a quarter to empty), with this info...the tune and gears on the 2010 are noticeably different to the 2007, and very FUN, therefore, I'd do the mods and enjoy them.

Hope this helps, good luck.

pdonket

Did you get yours from AM?

JIM5.0

Yeah, AM & Bama FTW!

Drove home for about 100 miles freeway, and I was stepping on it moderately, ~75 MPH, maybe some points I hit 80MPH, and I saw 26.1MPG on my dash mileage counter.
I reset it just before I left on my trip to try to get a freeway MPG.
Oh, I have 3.31:1 rear gears, so that might have helped the MPG.