I have had the tires and the car since new for 13 months total now. The tires have 26,500 miles on them. They are about 4.5-5/32 I have a 26 mile commute to work 5 days a week. Would you replace the tires now in advance before winter hits or would you ride them through winter and replace them at the end of winter when they probably be at 2/32. All opinions are appreciated. Thanks everyone