Hi everyone - I'm a newbie to the Vortex, but I did a search and didn't find anything definitive about my question so I hope you can help. I just recently bought a buyback 2013 Passat TDI. It sat for about 3 years and has only 28k miles. I was just at the dealer last week and when they did the inspection along with the service that was due, they checked off that the tires were in good shape, but I'm noticing that the tires look like they have some dry rot. Take a look at the photos. What do you think? I would hate to replace perfectly good tires with a decent amount of tread left, but I also don't want them to be unsafe as I do a lot of highway driving. I've never had any tires look like this before, so thank you in advance for any guidance you can offer!