I bought a used 2012 with 92k miles last week, and I was wondering if there was a good resource anywhere for things to check that commonly break with these trucks? The dealer was kind enough to give me a 4 year bumper-to-bumper warranty, so I was hoping to take advantage of that if/when anything needs to get replaced. It passed their "rigorous inspection", but who knows what the hell that means. I'm pretty mechanically inclined, and have done most everything at one point or another. I also ordered a Corsa Extreme and a K&N cold air intake, so I'm looking forward to upgrading those parts. Anything else I should do right away? Also, do these engines (6.2l) not have a normal PCV system? I was getting 9.2 mpg around town, which seems lower than I saw in the gas mileage thread. I wasn't sure if that could be plugged up or something else entirely. Is there a good resource for common problems/issues? Air filter seems OK as well. I was also going to get an oil catch can, but at 92k miles I'm wondering if that's a lost cause. Basically I'm trying to give this thing a thorough inspection and some TLC so it lasts for a long time. Any and all feedback is welcome! edit: I should say: I "bought" the warranty. Not that they gave it to me.