Join Date: May 2009
Car: OBW H6 VDC, H6 OB Sed, Tribeca, XT6
Feedback Score: 1 reviews
I notice no difference due to width and would find it hard to believe you would notice that small difference as well. I installed really thin tires on one of my Legacy's....nothing.
I notice no increase in mileage when running donut spares....just kidding. LOL
In my experience I'd have to be overtly picky to notice the difference to begin with and then a super bean counter to attribute it to width and not gas, driving, temperature, load, etc. I notice some difference due to diameter (which changes final gear ratio) sometimes depending on engine/model.
i have a fleet of Subaru's, numerous wheel and tire sizes, swap them indiscriminately, travel alot, and track gas mileage. in the past few years: new orleans 3 times, missouri, georgia a bunch, colorado, maine, florida and multiple shorter trips.
H6 OBW VDC, H6 OB Sedan, Tribeca, Lifted XT6