I work for a company that supplies Nitrogen to vendors. I've had to learn a lot about Nitrogen vs. Oxygen because of this. We also supply reimbursement for tire damage for some of our dealers as well. This year I've had a few people tell me that they experienced a blow out shortly after (about a week or two) after having a deflating tire topped off with oxygen. We receive a lot of claims, so I can only imagine the ones I didn't talk to personally. Is there something about potential damage to a tire and adding oxygen to nitrogen that makes this a volatile environment that would cause a blow-out? If so, can you explain? If not, is there something else that could explain this phenomenon?