[Steve_in_Jersey]

I'm going to be replacing the OEM Goodyear Integrities on my Prius and have heard many good things about the Pilot Exalto A/S tires from Michelin.
My one concern: MPG.

Is there anyone out there who has purchased this tire and can speak to how the tires have impacted their Prius's fuel efficiency? Has MPG gone down permanently? Has it gone up? Has it stayed the same?

I'm not talking about the change that results from using the non-stock tire size (185/65/15), but rather about a genuine change in fuel efficiency.

Steve_in_Jersey

 

[jcoppert]

i put these on my car thursday (205, 60, 15). the feel nice but milage is 3-4mpg less. coule be break in but I have no idea as I only logged 150 miles on them so far.

 

[Steve_in_Jersey]

Exalto

One thing for sure: moving to that size tire increase its diameter by over 2%, which has effect of reducing reported MPG (and speed) by same amount. So if you normally get 50MPG, right off the bat your MFD would report 49MPG.