Today I changed the fuel filter on my 06 DuraMax. My first time doing it myself just wanted to say what a breeze. Maybe an hour total including the reset on the DIC. Kinda fun. :)
Sounds like kids on the playground...I'm faster than you! Glad you took the time to learn to changed it. Could be one of the most important things to know how to do when stranded on the side of the road...no matter how long it takes.