For the curious, the name of this is a Porsche reference. My uncle has more or less exclusively repaired and restored Porsches for the last ~50 years, and I have spent a lot of time around them (passively - never got to drive any of the customer cars, ha!). Fuchs is the company that made wheels for Porsche for decades, hence the reference to brake dust. Lots of soot/ash/oil going on in this bottle, I would guess.
