At $2.50, I succumbed to the temptation a few weeks ago. Somewhere here on BITOG, I saw a post indicating that amine content of the stuff is only a about 5%. Well, st least it's got just a bottle of alcohol and kerosene.
I had an injector stick shut a few months back, causing a bit of difficulty. A little fiddling freed the pintle valve, and the injector is now back in the car, working fine. Still, the ordeal was a PITA and I'm willing to consider the possibility that snake oil like this just might help prevent a recurrence. We'll see!
The local BL was out for a while, but is well stocked as of late April.