25-35 in my truck. I'll take the Jeep down to six but two men and a boy could lift it up if I lost a bead. Maybe even lower if I'm really stuck.
Back in the olden days when I had a different truck and I was towing the Jeep I wound up on a dirt road, It was raining hard and on an uphill section I lost traction. Being solo there was no way to unhook the Jeep. So I spent an hour in the rain (had to warm up after each tire) lowering the tire pressure on the truck. Really good feeling when you ease into the throttle and it starts moving!
Before that I had a two wheel drive truck which I drove down a steep rocky road to the river. The river was nearly dry and when I tied to leave I just spun the tires. Unfortunately I was probably about twenty and didn't know about airing down. Can't say if it would have worked but I bet it would have. Might have saved me a scary hike down the railroad tracks back to town.