Nice video. I like the lil vids guys make for simple operations. The grease as said is for an air seal, I like a really tight rubber hose, works just as well. One thing though, I dont like that black, dirty fluid in the container. You may be sucking that up into the wheel cylinder. I like a perfectly clean container and brand new fluid if you use that method. I use a vacuum anymore when bleeding. But nice vid. JR