I purchased 4 new Continental tires from Big O for $1175. less than a year ago and paid $113.36 for \"extended tire protection\". This charge is for any road damage to the tire. My wife hit a curb in Nov. 2012. We took the car to Big O immediately on our way home. Dan Groman did a \"visual test for air loss\" but declared the tire sound and did a \"precautionary repair\" by sealing the flap of the tear with \"super glue.\" The tire was leaking 10 psi by the time we arrived home(15 minutes later) and continued to require 10-15 psi several times a day. We bought a new tire from Tire Rack for $210.00 (half the price of $440.00) that Dan told my wife a new tire would cost. We took the new tire to BMW North Scottsdale for inspection and installation of the new tire. We were told by BMW that the Big O \"repair\" was defective and very dangerous. They said \"super glue\" is not a proper tire repair and would lead to a front blow out  endangering the lives of any one in my car or any other vehicle near it (freeway or street driving).  The Service Department at BMW North Scottsdale who examined the tire and declared the damage \" ot within the range of safe repair\" were reasonable and professional in the job they did installing the new tire.  Dan Groman, however, does not honor his contracts and does not have the scruples required of someone in a business which can place customer's' lives as well as their property in jeopardy. His highest priority appears quite clearly to be his own financial gain leaving the customer's safety as well as satisfaction at the bottom of his list. I strongly advise against entrusting the safety of the tires you buy to Surprise Big O. Regards\n\nRegards\nDennis Millett