I had to buy some new 5 gallon gas or diesel jugs a while back. Little did i know that in 2009 the EPA mandated a new spillproof nozzle... Its spillproof all right, its about impossible to pour it out. Cold weather trying to fanagle with that thing pouring diesel in my tractor. I searched YouTube and found a way to disassemble the locking thing where you can actually get the diesel to pour out. In the photo you see the black plastic thing you have to saw apart and replace it with a 3/4 id hose. You warm the hose up to slide it on and you dont need a clamp, but i put one on later. You can put a 3/4 rubber stopper in the hose and you are good to go. Man, i hate the EPA. Someone actually makes a kit for this, think it was E,Z Flow or something. And you can get a vent port off ebay for about a dollar, drill the handle, and pop it in and you have finished your jug.