How Badly did I inflate my mileage

Spearmin

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So I put 35s on my JL Sport-S about 6k miles ago. However, I didn't do the calibration for the tires until now 14k-miles. Just wondering how much false miles are on there now?
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So I put 35s on my JL Sport-S about 6k miles ago. However, I didn't do the calibration for the tires until now 14k-miles. Just wondering how much false miles are on there now?
There are less miles showing on the odometer than actually on the Jeep - roughly 10%. So, I’d estimate you actually drove 15,400 miles.

Edit: I read your post wrong. You’ve had them on for 6000 miles per the odometer, so you’ve driven approximately 6600 miles.
 

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So I put 35s on my JL Sport-S about 6k miles ago. However, I didn't do the calibration for the tires until now 14k-miles. Just wondering how much false miles are on there now?
If you went to a larger tire, you have no 'false miles' on the odometer.
 

csjlu

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It's a math problem, but you left out a variable (size of prior tire). Assuming 33s, you understated the prior 6k miles by 6%.
 

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New tire size/old tire size X Odometer reading.

I use it to calculate my speed. For me i think i just did 35/33 x 50km/hr is actually 53kmh. You may have to fudge the numbers to get it right
 
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Spearmin

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There are less miles showing on the odometer than actually on the Jeep - roughly 10%. So, I’d estimate you actually drove 15,400 miles.

Edit: I read your post wrong. You’ve had them on for 6000 miles per the odometer, so you’ve driven approximately 6600 miles.
I put them on at about 6k until now.
 
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Spearmin

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It's a math problem, but you left out a variable (size of prior tire). Assuming 33s, you understated the prior 6k miles by 6%.
No sure what the previous tire size was, but the Jeep is a Sport-S 2021 if that helps.
 

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Like others have said, your odometer is reading lower than the true mileage driven.
 

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Circumference is pi * diameter. This is why each revolution is off by the simple ratio of tire heights. So 35/31.5 * 6000 miles is how far off you are. 666 miles. Now you’re in trouble.
 

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So I put 35s on my JL Sport-S about 6k miles ago. However, I didn't do the calibration for the tires until now 14k-miles. Just wondering how much false miles are on there now?
just curious as to why it took so long to calibrate the tire size after going from 31" to 35" ? Your speedo would have been way off at higher speeds.

 

Some Random Guy

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just curious as to why it took so long to calibrate the tire size after going from 31" to 35" ? Your speedo would have been way off at higher speeds.

Only a tad over 10%, unlikely to get someone a ticket unless they are already pushing the limit of their local PD’s tolerance.
 
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