To start I have read over 3/4's of this thread. Yes I am studying chemistry 101 and chemical science engineering. I cannot name all of the acids found in brake fluid, but boric acid and radiacid are a couple. There are also "fatty acids" found in dot three brake fluid. As far as my attitude goes I am not coming in here with a "im better than you" type of "cadence" as you say. I am open to any knowledge that someone wants to drop but I won't take bullshit. Sharpie ink actually contains several different dyes that when comined with glycol and other things in "pen ink" a chemical reaction happens to where it unifies and becomes a very good ink persae. Actually krink uses a basic sharpie ink with a couple more things added in there dye based mops. Also the ink in a sharpie magnum is quite different than a regular sharpie. It actually is probably somewhat of a good ink. Now on to that methylene blue. Yes the methylene blue you buy in pet stores is 1% or lower. Even though it is 1% or lower it is still a good additive and will mix with alcohol very well maybe not some of the other solvents I have listed (my bad). Now another "my bad" was saying 12 ounces, I meant 1 to 2 ounces. When methylene blue is in powder form you usually get it in %82 or lower (now thats the bomb shit). Now since everyone thinks my grammar is horrible, I tried to type this a little better.