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This is getting silly... never thought I was buying an economy car

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OP
LouG

LouG

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2025 Mustang GT
I'm surprised my mileage is still below 18 mpg. But at approximately 2,800 miles per year, I'm not losing sleep over it, anymore! I guess everything is relative. If I was still commuting 23,000 miles a year I might lose sleep over it! Glenn
Mine's back up there now Glenn. Urban driving is not great for economy. Ce la vie
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glenng6

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2024 Mustang GT Premium Convertible, Shadow Black
On my F150, the mileage computed by the dash is nowhere near correct. If I calculate by hand over several tanks, it's off by at least 2mpg. Add to that the speedo on virtually all cars is conservative by at least 1mph.
With a few exceptions, I would assume most ops are reporting whatever their dash is indicating. As I've said before, I am not losing sleep over it, but since we are comparing apples to apples, I have a hard time understanding why I'm getting almost 10 mpg less than nearly identical cars? There can be numerous variables: driver, temperature, elevation, but 10 mpg over a two-year period? Some of these guys must be living on an autobahn! Glenn
 

MidwayJ

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2019 Mustang GT Coupe, 2013 Honda CR-V, 2009 Ford Fusion
My '19 GT with 10 speed and 3.15 axle ratio regularly got 25-26 mpg on the highway, occasionally 27-28. My '26 with performance pack, 10 speed, and 3.55 ratio only got 20.2 mph on a recent trip. I knew the lower rear end ratio would make a difference, but I didn't expect it to be that much. The car only has 2,000 miles on it, though. Maybe it will improve a little.
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