I will have to order one. This is brilliant and will help keep the engine clean and extend the life. I will say the title of this thread caught my attention and please forgive me (or not) that I was compelled to write the following:

How much oil can a oil catch can can catch oil in the oil catch can? As it turns out @Valk answered this question. About 3oz of oil was caught in the oil catch can if an oil catch can could catch oil in the oil catch can.

My brain hurts from writing this.