Used '07 Shelby GT500, 5 MPG, What the....?

Raucous_Dog · 01-16-2011, 02:07 PM

I just purchased my second SVT Cobra, a 2007 Shelby Cobra GT500 w/32K+ miles. It was originally a lease (3 yrs) from up in Raleigh, NC way. I noticed the computer listed the average mpg @ 5.2. I thought this may be a mistake until I filled the tank up, drove half and half city/hwy and did the math. WOW!!!! 6 mpg

.
What's going on here and what is the best approach to run it through a diagnostic check or something?
Should I take it to an SVT dealer and ask to check the tune? How to find out were and what has been done to it?

I'll start off with, hopefully, some easy questions, as I'm sure I'll have more. That's why I've come this forum. To get help, make friends and maybe even pick a few brains on some mods. I'd also like to get together with like minded SVT owners here in NE Georgia to lend a helping hand with those tasks that require a third hand, or second if one is occupied with a beverage.

Thanks in advance.

Cheers!!!!

nckissfan · 01-16-2011, 09:56 PM

welcome. I would give the car time to get used to your driving to get the mpg more up to normal. You have to figure, some people drove the car, and drove it hard, bringing the mpg's down.

I daily drive a 2000 Explorer Eddie Bauer with the 5.0 V8 motor. It has the mpg readout. When I bought it, it was displaying 15.2 mpg average. It slowly came up with my driving style. Now, I am averaging 19.1 mpg in it.

SuperG · 01-17-2011, 08:56 AM

If you are saying you drove through a tank full of gas, recorded the number of miles you actually drove and divided by the number of gallons of gas you just put back into the tank and came up with 6 mpg, then I would say either you are driving a road course or something is seriously wrong.

**cobrabitn** · 01-17-2011, 10:06 AM

5.4s aren't known for getting good fuel mileage. If you bought a Shelby for getting fuel mileage, you made a big mistake.

01-16-2011, 02:07 PM	#1
Raucous_Dog Registered User Join Date: Jan 2011 Location: Northeast Georgia Posts: 1	Used '07 Shelby GT500, 5 MPG, What the....? I just purchased my second SVT Cobra, a 2007 Shelby Cobra GT500 w/32K+ miles. It was originally a lease (3 yrs) from up in Raleigh, NC way. I noticed the computer listed the average mpg @ 5.2. I thought this may be a mistake until I filled the tank up, drove half and half city/hwy and did the math. WOW!!!! 6 mpg . What's going on here and what is the best approach to run it through a diagnostic check or something? Should I take it to an SVT dealer and ask to check the tune? How to find out were and what has been done to it? I'll start off with, hopefully, some easy questions, as I'm sure I'll have more. That's why I've come this forum. To get help, make friends and maybe even pick a few brains on some mods. I'd also like to get together with like minded SVT owners here in NE Georgia to lend a helping hand with those tasks that require a third hand, or second if one is occupied with a beverage. Thanks in advance. Cheers!!!! __________________ '96 Cobra (Sold) '07 Shelby GT500

01-16-2011, 09:56 PM	#2
nckissfan Everyone hates a winner! Join Date: Jan 2004 Location: Browns Summit, NC Posts: 2,810	welcome. I would give the car time to get used to your driving to get the mpg more up to normal. You have to figure, some people drove the car, and drove it hard, bringing the mpg's down. I daily drive a 2000 Explorer Eddie Bauer with the 5.0 V8 motor. It has the mpg readout. When I bought it, it was displaying 15.2 mpg average. It slowly came up with my driving style. Now, I am averaging 19.1 mpg in it. __________________

01-17-2011, 08:56 AM	#3
SuperG Registered User Join Date: Nov 2005 Location: Houston, TX Posts: 1,500	If you are saying you drove through a tank full of gas, recorded the number of miles you actually drove and divided by the number of gallons of gas you just put back into the tank and came up with 6 mpg, then I would say either you are driving a road course or something is seriously wrong. __________________ Gary 1997 with Vortech V-2 SQ-trim 420 Hp/376 Tq at 5psi 2010 Shelby GT500 - Stock http://members.cardomain.com/supergr

01-17-2011, 10:06 AM	#4
cobrabitn Dr Jekyll on the street, Mr Hyde on the track Join Date: Jun 2001 Location: Rock Hill SC Posts: 14,649	5.4s aren't known for getting good fuel mileage. If you bought a Shelby for getting fuel mileage, you made a big mistake. __________________ Cobrabitn 2016 Ruby Red Metallic with Caribou accent F-350 Crew Cab Stump Puller! 6.7 Diesel Automatic with Chrome Package, Off Road Package, 3.55 Locking axles, and Ultimate Lariat Interior Trim Package! 2017 Shelby GT350 Coupe - track car! Mods: JLT True Cold Air oil catch can 2009 Vista Blue Shelby GT 500 Coupe - Garage Queen Tinted Windows JLT True Cold Air Kit Pro-Dyno Tune 526 rwhp - 511 rwtq 1994 Rio Red Indy Pace Car #22 "Runabout" Snake in the grill MGW shift knob 1996 SVT Cobra Wheels 1969 New Lime Mustang Mach 1 Sportsroof - Second owner - bone stock with shaker. One SVT Cobra, one Shelby GT500, one 69 mach 1, and a Shelby GT350 is better than nothing! Custom Data Plates for your Mustang or Ford! Buy "Cool Merchandise" at Data Plates Plus www.dataplatesplus.com See my MSR Video here!

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