mwiseltier

Ran over some sort of road debri while driving. Both front and rear passenger tires blew out. Dealer looked at it and put 2 new tires on the car. I asked them to save the tires and put them in my trunk. I inspected them and did not find and tare or holes. Only some black dust in one of the tires. My big question is could I have reused the original tires, since there was no visible damage. They really looked fine. Was the dealer just selling me new tires to make money on me. I was surprised not to find any damage. Please advise. Thanks, Mike