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Airaid Jr. mileage update

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Old 06-02-2009, 05:33 PM
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Smile Airaid Jr. mileage update

I drive the same route every week, a total of 75 miles round trip at highway speeds (60mph), drive intown approx 30 miles a month giving me a total of around 325-330 miles a month. I checked my mileage with the factory type air filter/intake system and I averaged 15.15 mpg with 3.73 gears and the 5.4 L 3-valve motor. Mileage with the stock intake and a K&N flat panel filter increased to 15.73 mpg. I installed the Airaid Jr. intake with the K&N filter and mileage increased to 16.06. I then put the stock type (Fram) flat panel air filter back in the Airaid Jr. and averaged 16.63. The motor pulls harder with the K&N filter with the Airaid Jr. but also loses almost .5 mpg. Truck is a F-150 2006 Supercrew with a stock exhaust and no other mods and 50psi in the tires.
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Old 06-03-2009, 01:42 PM
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Sounds like you did a lot of testing, and took a lot of variables into account.

Nice work, repped.
Originally Posted by Silver Streak View Post
You're having problems because some butthole put the wrong one on your truck.
1990 Ford F-150 XLT Lariat Supercab - 5.0/E4OD - Dead and gone.
1993 Ford F-150 XLT Supercab - 5.0/AOD - 3.55
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Old 06-03-2009, 01:42 PM

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