Anybody see a measurable change in fuel mileage with larger diameter rear tire?

[Tslepebull]

I am considering changing the 225/50-15 OEM tire on my Canyon to a 205/60-15 (probably Vredestein) before a long trip this summer. I was looking at data on an on-line vendor where I could compare specs from the OEM to the larger diameter Vredstein. Apparently the narrower/taller replacement tire would turn some 3-5% fewer revolutions per mile. This leads me to question if anyone has noticed a change in fuel economy after making a similar change? Presumably fewer rear wheel revolutions per mile would result in less fuel per mile. Not that this is a big deal compared to a better constructed /longer lasting tire just value added.

 

[Snoking1127]

I am considering changing the 225/50-15 OEM tire on my Canyon to a 205/60-15 (probably Vredestein) before a long trip this summer. I was looking at data on an on-line vendor where I could compare specs from the OEM to the larger diameter Vredstein. Apparently the narrower/taller replacement tire would turn some 3-5% fewer revolutions per mile. This leads me to question if anyone has noticed a change in fuel economy after making a similar change? Presumably fewer rear wheel revolutions per mile would result in less fuel per mile. Not that this is a big deal compared to a better constructed /longer lasting tire just value added.

It will correct your speedo about 1 MPH, noticeable effect of fuel mileage is not going to happen.

 

[Woodaddict]

3-5% fewer revolutions per mile translates to a BIGGER diameter tire, so will give you better MPG, but probably not noticable

 

[Cosmo]

No noticeable difference for me

 

[BajaRon]

With a 3-5% reduction in revolutions, your measured fuel mileage would go down 3-5%. But in reality, you're going 3-5% further for the same mileage reading, giving you a wash. There are other factors involved. But essentially, though your math may indicate a reduction in fuel mileage, your actual fuel mileage will be nearly identical.