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Gas Mileage Comparison

SS2 GOTZ

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Denver, NC
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2024Mustang GT Performance Convertible
First, let me say that I didn't but my2024 GT Vert Premium for the gas mileage, But I am interested in hearing from the community on their experience with mileage. I started out stock and added a bunch of Steeda suspension parts which I love. Using mostly Normal mode and Sport mode, usually around town and on local freeways, I was averaging about 17.5 mpg always on 93 Sunoco Gas. Along about January of this year, that suddenly dropped to about 15.8 MPG average in all the same conditions. In May, I had a Whipple stage 2 installed along with Kooks long tube headers and Kooks high temp green cats. I did this knowing full well mileage would take a hit, but again, I didn't do any of this to get mileage. After Whipple and header install, I'm now averaging about 13.5 MPG. I don't track it and don't do any hard pulls. Just curious what others are seeing in the GT Premium configurations.
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fishinrich

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North Carolina
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2024 Mustang GT Premium - 2022 Ram 1500 HEMI Bighorn
Bone stock 26 mpg going easy on the big peddle.

Back roads of NC 55 mph and some I-95 70 mph.
 

GrabThatBlue

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Mustang GT Premium, 401A, 10R80, PP, AE, NPP, MR, Recaro
It's sad that we have to start with the first sentence, just because we have to defend ourselves first from the people who we expect to react like "You have a GT and you care about gas mileage? Go drive a Prius".

My average is about 11.7L/100km
 

garagely

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pnw
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dark horse
~13 MPG life to date (30k miles)
~10 MPG over last thousand miles
~6 MPG during last track day
 

TMR

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'26 Mustang GT Vert, '21 F150 KR, '25 X5, '25 X3M50
16.5 mpg currently. With a manual Coyote you have to keep the revs up so you are always ready to roll :rockon:

Seriously, I can get into the looow 20's on a highway cruise.
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