Hi New Chevy 3600 owner. Went out for my first drive and it could have gone better. The car was fine on the flat and would rev off load but when going up hill it starts to kangaroo and cuts out. Could only crawl up the hills in first. I’m guessing it most likely fuel related but after some advice on logical way to diagnose the problem. Car has not run since last September so wonder if the fuel is going bad. We don’t get good fuel here like you do in the USA.
A picture paints a thousand words so I made a video the action starts 5 minutes in
