245-75-16 Vs 265-70-16

Just got 2011 Pre-runner 4D 2.7L, I want to change the tires, Michelin for sure. Stock 245-75-16 kind of narrow ?? 265-70-16 same hight but a little wider, would the wider tire hurt at the gas pump ?? Need some feedback... Thank's Mike

 

It will a little, nothing dramatic. Depending on how heavy your foot is, maybe 1 mpg. I went from 245/75R16 to 265/65R17, same height, wider but also bigger rims and I'm getting pretty close to the same mileage, slightly less. I also have the V6 so I'm not sure if it would affect the 4-cyl differently.