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Gas Mileage Comparison

Achlys

Well-Known Member
Joined
May 31, 2026
Threads
7
Messages
100
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157
Location
KC Metro
Vehicle(s)
2026 Mustang GT Premium 401A, A10, 3.55, AE, Bronco Sport Badlands Sasquatch
I’m not achieving more than 11 mpg, I’m getting concerned about my carbon trap removal and K&N filters installation I did myself can have something to do. Car was new as were the filters.

I may have a leak.

While I don’t mind efficiency since my other car is a Tesla, I care if something is working improperly.
Couple suggestions that you’ve mostly likely checked.
Keep it in standard setup, not sport etc.
Tire pressure is correct.
Drive like granny.
Hard to believe your mods would create your results. Take it to your dealer and run a diagnostic.
Curious how your vehicle works out.
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erocker

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Joined
Apr 4, 2023
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5
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Location
Milwaukee, WI.
Vehicle(s)
'24 Mustang GT Premium, '09 Lexus IS250 AWD
Mostly city driving here and after almost 3 years (24 GT Premium w/PP, Auto) I'm right on 20 mpg.
 

DarkHorsePremium

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Joined
Mar 17, 2026
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Location
CA, Bay Area
Vehicle(s)
2026 Dark Horse Premium, Blue Ember with Appearance Package, 10 spd AT
DHP w/10 speed. Average.
17.5 around town
23 on the hwy as.long as I don't get on it.
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