No need to service it once a year. If you have to that often you have a leak and the guy is taking your money. Refrigerant doesn't go bad. If it's blowing hot it's because there's a leak.
Most people whined about wanting more gears. This is what you get. I rented a Cherokee with a 9 speed. If I looked at the gas pedal it would down shift. It was always down shifting.
Interesting in your original post stating you were grossly overloaded and you had a hell of a time stopping. **** happens. If someone dies because of your incompetence, you deserve to be in prison for the rest of your pathetic life.
What would you do if you were pulled over, or someone pulled out in front of you? Eh slam on the brakes and plow through them because you thought it was ok to be 6000 pounds over?
I rented a new Cherokee (rattle trap) with a 9 speed. That thing shifted alllll the time back and forth. If I looked at the throttle, it would down shift. Could this be an issue with having so many gears in the tranny?