You don't need to oil the angel every time you use it, only about every 3 to 4 cases actually (well, if you're shooting that much a day, but I'm not thinking that's the case). You can push either the middle or bottom button, and the message goes away. It's not as though there's an internal sensor to tell you if your marker has oil in it, it's just a board feature that reminds you to maintenance your marker once the shot counter reaches a certain number of shots.