Okay, I have a story that sounds too good to be true, and it is one of the reasons that I am now an Amsoil dealer.....
A couple of years back, when Amsoil just released, or I just realized that they had Amsoil European formula 5w40, I started running it in my 2000 VR6 VW Jetta. It was in the motor, and I took it to Checkered Flag Auto Service, in Grove City, OH to get the oil changed. It is now Mobil Lube Express, go figure. Anyway, I paid them to put Amsoil in my car, and I had it changed out at my regular 5k OCI. (keep in mind, this was pre-BITOG, and I was just lazy on changing my own oil.) Anyway, I went to get it changed and about a mile after I left, my check engine light came on, and my oil light came on and started beeping, it may have been on and I didn't see it, but it starts beeping after a minute or something. The car was running fine, and I knew immediately that they had drained the oil, and not replaced it. It had Amsoil in it before this, and they were supposed to have put it back in again, but some idiot there didn't do it. So, I drove the car back to them, and I drove it as hard as I could and it was running just fine. I was hoping it would blow up and they would owe me a motor for their mistake. They agreed as soon as I got there that they had forgot, and the Amsoil quarts were still sitting on the ground. I got a police report, and took it to VW to get it inspected. They tore the motor apart, and found no problems at all, they only replaced the seals that they had to. Checkered Flag covered the bill immediately, and all was well. So, I think that this is possible on a short mileage basis. As for me, I trust Amsoil products because of this. What would have happened if I had some GIII oil in there? Who knows, but Amsoil did good for me. I no longer have the car, and it was running like a champ 30k miles after that, no leaks, no noise, even the timing chain didn't rattle.
I think this motor was probably prelubed prior to every single start without any oil. I think it is the only way it is possible, but I think it is possible.