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Discussion Starter · #1 ·
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
 

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Discussion Starter · #3 ·
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.
 
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