I have had my Model X for almost a year now without any problems. I am about to go on a long roadtrip. Does anything needing lubing, topping off, checking? What components can I check on my own? I am an engineer, so details would be great! Tire tread is fine, and windshield fluid is full Also, for maintenance, the Tesla sales guy said I should take it in for checkups every 6 months and not to wait any longer than 12 months. Is this sales talk or do Teslas seriously need this many checkups? How much is a checkup, and does it complete the same day? Thanks for you help!!