Originally Posted by MasterVic
is it true that there is higher fuel consumption with wider wheels?
Yes
Higher rolling resistance, plus more aero drag too.
Originally Posted by MasterVic
what do i get from 225/45R17 rather then 215/45/R17 ? better grip?
Maybe more grip.
But do you really need more?
It may be better to just get a better 215/45R17 tyre.