This is the green color shotmaker that only has 2 spouts. He could not find the directions but the previous owner stated diesel fuel was the specified coolant. I am going to try Sierra Antifreeze when I get some tomorrow. My first attempt just made globs. The shot was turning into a stream on the lip of the shotmaker. I did use the supplied chalk prior to melting but it still streamed into the can. I am still happy I found one of these for a great price. Anyone else have one of these and is using it with luck? thanks ahead of time Mike