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Originally Posted by jjs
From what I can tell, there is only going to be a 1.7% difference reslting in 60 vs. 61 mph readings...you are agonizing over this little difference in speedo?
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jjs,
You're right about the difference on paper. But to be sure, after the tire change I went to the local interstate and set the cruise and timed the MPH between several mile markers. The cars speedometer was reading 57mph at 60 seconds. That would mean that at 60mph I am really running almost 63. So yes I would like it as close as possible. So it means that when I'm running 74mph I am probably running 76+ and then the cops won't like it. Either way I am speeding. But their braking mark in most areas is 9 over . Now I know what to run to avoid a ticket, but the wife may forget. Like to keep my happy home happy.