What's going on guys. I'm 20 years old and I currently drive a 2002 Acura TL type S. I drove a 96 Tahoe untill summer of 2007 when gas prices were over 4 dollars a gallon and because of the drive to community college and back every day I could not afford gas so I had to get rid of it. I'm very happy with how my TL has treated me but this fall i'm transferring to a college where i'm going to be doing a lot of hunting/fishing and I know my TL is going to limit the things I can do so I've decided to pass it down to my brother and look for a truck. I have a family friend who is going to be selling his 2004 Silverado Z71 crew cab (with all options) with 35,000 miles this winter and I really want to take it off his hands. He will give me a better price than I could find elsewhere because we are close but I have a few questions: 1. How are these on gas mileage? 2. Do many people install Cold Air Intakes/Short Ram Intakes on these to improve HP/gas mileage? or are there any other upgrades to improve gas mileage? 3. What are some problems with these trucks, (such as the 1999-2003 Acura TL's are notorious for having bad transmissions) 4. How are they when it comes to maintenance? even up past 100,000 miles and farther...(if I get it I will have to keep it for a long time) 5. Any other advice would be GREATLY APPRECIATED along with any PRO's/CON's that you can list! Thanks for all the help guys and I'm HOPEFULLY looking forward to owning this vehicle if i get overall good reviews on this vehicle. Thanks again!