Finally found something that smells worse than used gear oil...lol
Apparently my 10 year old 5 gallon bucket of Chemdip only needed to be moved out from under the bench for the rusted bucket to turn into a sprinkler. That was a nice panic run around the yard to get a plastic bucket and dump it in.
There was only a couple gallons left but I lost about half on the garage floor before I got it dumped in a new bucket and got kitty litter covering the mess.
Got the carb soaking and I went to bed.
I left the fan on in the garage all night with the doors all cracked open and it still reeks in there...
On the plus side, that part of the garage floor has never been cleaner..lol