Internal engine cleaners/additives

Trust me, there was enough oil in it, or the rods would have been hanging out of the pan. BS
It was a fresh 360 and the side of the piston was melted and gone on one cylinder the engine had no wear and no oil on the stick. I drove this truck on all snow days to work and when ever I needed to haul or tow something. I unplugged the oil sending unit because I was sick of seeing the light on.

At Carlisle The guy had a 318 running on an engine stand for 3 days without a oil pan. I have seen him there since with a slant six also. "Prolong" Give a try.