S/C oil options

[WormGod]

I don't know of any other S/C oils, but it's only supposed to be changed every 50k or 100k miles, so who cares if it costs you $5 or $16 the one time you will need to change it?

I just want to give it a good flush, meaning:

Drain it
Fill it
Put 1,500 miles on it
Drain it
Fill it, again
Leave it

Was hoping there was a synthetic out there I had not come across. I just did my 30k on my Rex and went synthetic EVERYWHERE possible. It might be all in my head, but I seriously feel like it made a difference, so thought I would see if there was a S/C alternative as well. I still haven't found anything though, so I imagine it's a lost cause. *shrug*