Originally Posted by oaky1717
ok so i know the changing to a bigger size tire will affect the speedometer. In my case, 27" tires to 31", i will be traveling about 15% faster than what it tells me.
My question is does the difference in tire size also affect the difference in how many miles it says i traveled?
im sorry but its hard to believe that my 4cyl is only getting 14mpg. its a manual and i would consider myself a conservative driver......most of the time...
The 15% applies to your speed and to the distance travelled equally.
This is because the odometer is drive off the speedometer.
Best way to figure out exactly how far you've travelled is to get a GPS and do a few trips of many miles. Compare the odometer and the GPS log to see how far off you really are.