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Deviaton ODO meter - Page 4

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Posted by Carpe Diem on September 28, 2006, 3:05 pm

I guess it does...

Posted by Bill on September 28, 2006, 3:11 pm

Good question.  Tire diameter will affect a manual calculation of mpg to the
same extent it effects the odometer reading.  I'm thinking the Nav system
calibration is necessary to keeping the positional icon properly situated on
the map display between GPS readings but with some clever programming it
could be used to calibrate the odometer.  Maybe one of the Prius techs who
visit this group knows the answer.

Posted by DougSlug on September 27, 2006, 11:10 pm

That will be a more useful measurement.

My point was that you had calculated the error to something like 4 decimal
places, which means you are introducing more precision into the measurement
than is actually there.  That can be misleading, especially if rounding off
is involved.

Posted by Bob Wilson on October 4, 2006, 1:13 am

I put new tires on and found a difference but not significant:

30 mile - mile markers
30.1 miles - ODO

Roughly about a 3% difference.

Bob Wilson

Posted by Mike Keryan on October 5, 2006, 12:49 am

Bob Wilson wrote:

Actually a 0.3% difference.

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