Thread: gas guzzler tax
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Old 01-19-2009, 01:03 AM   #14
Tal
 
Drives: Old
Join Date: Sep 2008
Location: OK
Posts: 726
17/25 results in no gas guzzler tax.
For no penalty the total has to be above 22.5 for the following formula. (Do not ask me how they came up with this formula, there are reasons behind it all but it's from politicians and beaurocrats so don't look for to much logic)

Fi = 1/(.495/Fc+.351/Fh)+.15

Fi is our total that needs to be greater than 22.5
Fc is city mileage
Fh is highway mileage

17/25 results in 23.3+
With 17 city you can drop to 23 highway
With 16 city you have to get highway all the way to 26
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