Cambouis [masculine noun.]In French, dirty engine grease, oil blackened by rubbing against the mechanisms of a machine.

The smell of dirty engine grease has always both attracted and repelled Pierre Guillaume. Though it was associated with happy moments in his life, this engine sweat”, with its pungent smells of tar, petrol and oil, was also disturbing.
Many years later, he finally understood the hidden poetry of this “Black Mucus” and decided use it as a theme for his work. 
Mécanique du Désir has the warmth of amber and animalic musks, tinged with the strange blackness of a guaiac wood and violet leaf accord.The sulfurous notes of cassis bud mixed with aldehydes will trace metallic outlines, while mandarin essential oil will add the gleam of chrome.