When I was watching Mike R talk about the cut wave and smoke units he said they always add smoke fluid with a small needle point oiler with smoke fluid in and makes for a much neater application. I use labelle 107 oil on my locos and the bottle just went near emply. I added some smoke fluid to the bottle and shook it to clean out the bottle, dumped out the fluid and then filled. Works great and when I put the needle to the bottom of the smoke unit (felt the bottom. just one quick squeeze and I took it out. Clean as a whistle application and a bonus. The smoke unit smokes better and doesn't get weaker as when you add too much. If you have another eye dropper test out how much one squeeze is by doing it into the other dropper. Then tip up the eye dropper so the fluid goes down to see what you are adding to the smoke unit. It doesn't take much of a squeeze to = one eye dropper full.
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