Thread: H3 MPG < H2 MPG
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Old 10-31-2006, 08:44 PM
Wisha Haddan H3's Avatar
Wisha Haddan H3 Wisha Haddan H3 is offline
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Default Re: H3 MPG < H2 MPG

Just did some calculations on your estimated tire diameter (C = pi * d). Assuming an actual diameter of 33 and 35 inches, your tire circumference changed from 103.62 to 109.9 inches, so you're now travelling 6.28 inches further with each tire revolution than your odometer reads.

To convert your mpg, find the ratio of one circumference to the other and multiply by your odometer's mileage.

109.9/103.62 = 1.06%

9 mpg * 1.06 = 9.5 mpg (corrected)

That's not very much. Maybe aerodynamics from the t-bar lift makes a bigger difference. Other factors could be tire pressure, cargo load and driving patterns.

Somebody please check my math. My algegra's a little rusty.
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Last edited by Wisha Haddan H3 : 10-31-2006 at 08:46 PM.
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