I currently own a 2018 sport S unlimited with 32k miles, and I typically don't purchase extended warranties. However, I a in a bit of a different situation at his time. After a long journey, I have been accepted to medical school. I'm planning on keeping the jeep for the four years, but I really don't want any huge surprise bills, and I won't have the time to work on it myself. Does anyone have any experience with purchasing a warranty through the dealer? Are you allowed to modify your jeep? I currently have stock rubicon suspension and 33 inch tires on it.