Hello Insighters, anybody out there having hard time with proper tire sizes? I have 175/65/14. Totally wrong size, and come to find out very hard to get unless you know what your doing have experience or know your resources. If I try real hard on flats, I got 58mpg, but on average around 49mpg, to me this is Bad, I have regular car Suzuki Swift that's gets this mpg and it's only gas. With my Insight I tried original spare tire in which I have 2, I put them on front and drove car, it had great power with the spare tires on front and fuel mileage went up to 68mpg, so what are your experiences Insighters? I got a resource to get 165/55/14, what do you guys think if I were to put this size on my car? Thanks for any input!