[WA1DH]

I have a Ford Escort with P175-65R14 tires on it. 3 of them are worn out, so I'm probably going to be buying a set of 4 for it. I also found out my stock tire size is P185-65R14. Running the 175s has made the speedometer/odometer off by about 2%.

So, my question is, if I go back to the stock 185s, will I notice any difference in MPG? I realize there is more tire on the ground (~.35" wider tread) which means increased rolling resistance. But, will it be enough to notice? I get about 35 MPG highway right now and would like to keep it that way.

Thanks.