05 GT MPG/Performance Concerns

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Sep 13, 2012 | 12:50 PM

#21

TRexGAWD

4th Gear Member

Joined: Feb 2008

Posts: 1,761

From: Georgia

Only on 05s, and not on all of them.. Just open your airbox, you will either see a honeycomb looking thing in there or not

Sep 13, 2012 | 02:49 PM

#22

Derf00

Gentleman's Relish

Joined: Feb 2005

Posts: 13,189

From: AZ

https://www.fordmuscle.com/archives/2005/05/05CPR/

3rd pic on the right hand column shows what the carbon trap looks like.

Sep 14, 2012 | 03:45 PM

#23

AMWill

Former Sponsor

Joined: Feb 2012

Posts: 1,632

From: Pennsylvania

Quote:

Originally Posted by 00GT05

So I purchased this car about 2 months ago from a local dealership with 56k miles on it. I had to compromise with my wife and get an auto, she refuses to drive a manual. The car seems to run fine except for the occasional down shift clunk. No aftermarket mods.

I have consistently averaged 13-13.5 MPG strictly city driving. Literally 5 miles to work and back, stop and go, never faster than 45mph. Not getting on it, just driving like a regular human being. Is this right? I know the sticker will say 18mpg city but I never buy into that. Is 13 mpg right on an auto or could there be some underlying issues with the car?

Also, this thing is gutless. I sold my 00 GT, 5 spd, no mods, last year and it was much quicker. Is it me or are the autos just kinda lame? Could there be some performance issues with the car?

What are some things I could look at?

Thanks for any help. I'm almost at the point of taking it in to get a complete check or selling it and getting a GTO.

00GT05,

That doesn't sound very far off actually. I can see a bone stock 05-09 GT auto getting those mpg's. If you're interested, a Bama SF3 tuner will help you improve mpg's slightly, depending on your driving behavior. I'm not sure what you were expecting our of your GT, but firming up the shifts, adjusting the shift points for a street/city use, adjusting fuel trims, etc can easily net you a 2-3mpg increase.

I think you'll definitely enjoy the increased power/throttle response too. If you have any questions, just let me know!

Shane

Sep 14, 2012 | 07:09 PM

#24

Nuke

6th Gear Member

Joined: Jun 2007

Posts: 16,182

From: PA to KY ('07) to IL ('09) to MS ('10) to FL ('11)

Thanks, Derf00. I couldn't find a picture.

Sep 14, 2012 | 10:32 PM

#25

rdsx18

4th Gear Member

Joined: Jun 2008

Posts: 1,387

From: MA

That seems right for such a short drive, especially if you let your car sit and warm up before you go to work. I only get 18mpg cruising on the highway, but I do have cams.