So I inquired at Costco tire center about their tire choices and prices. They told me Michelin $130 off best bet, and tire choice closest to OEM 225/55/18 size which is not available, is available in 235/55/18. The salesperson said they will be negligible difference in fitment and reassured no rubbing on stock ride height 2018 Forester XT. Is this correct or a gamble if I buy these tires to put on a 18x8 wheel? Thanks in advance for your input.