I dont disagree with anyone. I guess I'm a neurotic one. I change every 3K.Yup, old school! But Im one of those guys that never lets the tank go below 1/4. I put leather conditioner on the seats every month, rotate the tires every 8K or so,change the wiper blades yearly, etc. I probably over do it, but I'm a believer in maintenance. Or maybe I just love my Hummer that much!
