Tires will not hold air pressure. december 2014 driving alone tire blow out while driving 55 mph on cold evening (10 degrees f), hwy 19 south bound. tpms light came on seconds before tire blow out. called audi roadside assistance. record available. replaced with same perelli p6 - 245x40rx18. same issue. tires do not hold pressure. october 11, 2015 had rims cleaned and tire/rim sealer applied to hold tire pressure. same issue. tires do not hold pressure. my spouce is very uncomfortable driving car that tires blow out and do not hold pressure. these tires should be inspected and recalled. happy to help gets these tires off the road. they are dangerous!