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Hello, I am trading in my car for a 09 Impala SS (122k miles, garage kept, completely stock). I was wondering what is the real world MPG to expect from this car? My car was suppose to get around 28 mpg highway but i averaged maybe closer to 21. Looking for results from both with and without the active fuel management enabled. I know people that normally buy these cars don't care for fuel economy but I am just curious on what I should expect.
 

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Have not had my 09 SS long enough or driven it enough to figure gas mileage. I can only say it gets better mileage then my 05 2500 HD silverado but much worse then my 18 acura TLX.
I'm going to try the Range AFM disabler very soon. Your correct in that fuel economy was not a consideration before I purchased.
I've been searching this site looking for info on any body's experience with an AFM disabler. Surprised I have not found any threads with info.
I do enjoy the car a lot.
 
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