I am getting that you can just add air to tires that have nitrogen in them correct? My son just bought a trailer and his tires have nitrogen in them. Its only a 2 year old camper and this was his second time using it and he got a blown tire on the pike.Luckily he kept it under control and not much happened only a crack in the bumper and the need for a new tire. We have been camping for years and never had a problem like this. And we never heard of tires with nitrogen so its all new to us. Any imput on what could have happened? Could it been because they had nitrogen in them?