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New Tires and MPG

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T

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Discussion Starter · #1 ·
I changed form 265/75/16 to 285/75/16 and have not recalibrated. Is there any adjustments that I need to make in computing the MPG for my truck?
 
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D

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#2 ·
Just divide 33 by 31 which equals about 1.0645.
Multiply 1.0645 times your mpg and you will get your new mileage. I assume you are figuring your mpg by hand since the factory readout is wrong 99% of the time.
 
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