Originally Posted by AndrewFalk
ODO is based off of revolutions per mile...speed is not.
Ok so your telling me this is wrong:
Speedo says 70, I am going 66 according to my GPS, difference of 1.06.
When I calculate my mileage per a certain trip and compare it to my GPS trip mileage, I am at a difference of 1.06 (trip contains more than 50 miles to remove some error).
So you are telling me there is no correlation between the 2? I find that very hard to believe.
In no way I am saying you are wrong, but with my observations and record keeping the numbers go with a different theory than you are mentioning.