View attachment 70333
Basically the nozzle is like the built-in straw on a cheap travel mug. The main problem compared to the built-in nozzle on like a bottle of Motul is that it is WAY too narrow - air can't go back up at the same time and it resists the oil going down. So to get the oil out you gotta slowly milk it like a plastic bottle of honey. You can't just rip off the nozzle and use a normal funnel either - I had to crush the neck of the bottle with a pair of vice grips to get it off, so doing that with a full bottle will probably shoot oil in your eyeball. And if you re-use oil containers to store used oil like... most people, you will HAVE to rip the nozzle assembly off. If I had to give the designer credit for anything, they designed the assembly in a way that lets you get 99% of the oil out (i.e. it's not wasting oil)
Funny enough, when I ordered these I noticed x4 1L was cheaper than x1 4L - I wonder if this was why