ATF: I have'nt heard of that in forty years. When I was a kid with a paper route, I would stopped by one of my customers, a 24 hour gas station and the guy there would give me ATF. He would fill up a coke bottle for me (8 oz.) and cap it with wax paper and a rubber band. Today, I too am searching for someting to use on my chain. The last time, I did my chain, I used Park Tool Polyurea Greese. I got it to lube my wheel and the guy said if I cleaned all the excess off, I could use it for my chain too: so I did.