I remember coolant video a few years ago with my own eyes, and cringed as I watched it(back before when I had him on FB and had to delete him due to his personal drama saga he continued to post). He spend a LONG time >5 minutes (closer to 10) running that poor Z with no coolant, water pipes etc. I get it, start it and make sure it idles good and isn’t running rough after a T-Belt job, but to spend 10 minutes showcasing the work while it’s idling away is completely insane. People don’t have to take my word for it, watch the video yourself unless it was deleted..