So im sure this is boring for most of you geniuses(sp?) but I got bored and wanted to know how many miles I was actually racking up since I havent recalibrated my truck after getting bigger tires. My old tires were 29's and my new ones are 35's. after doing some simple math and crossing my fingers I figured that I am actually going 1.2 more miles than are being tracked. so for every 10k miles shown on my odometer I am actually going 12k... just a fun fact I guess lol. I mainly wanted to know so that I can keep my oil changes and stuff on schedule. And it felt good to use my brain during the summer lol.

 

That is very close, but why not get a tuner so you can recalibrate and also have a correct speedometer.

 

I am currently budgeting for a tuner but in the mean time I wanted to figure it out.

 

Look at the wheel tire calculator sticky at the top of this forum. You can use that to get the exact differences.