There is only one way to get better gas mileage. Buy a prius. You can keep good maintenance and keep weight down, but its not going to do very much. When you bought a jeep I know you didn't buy it because you finally are going to save money on gas. You bought it for the fun you have in it...
Great write-up, There's one more thing you can do to make it even easier. I use replaceable gaskets by Lube Locker. They work great and you dont have to use RTV. So no scraping it off. As I said there reusable. One guy I know has used it over 10 times now. They're great. They cost about...