Robert Oster Signature Ink - Motor Oil

The name of the ink already promises a lot: When writing, this ink is glossy black with a green component. As soon as it dries it turns a dark olive green. It continues to change color so that in the end there is a very dark brown-green on the paper. It then appears like fresh engine oil, but more for petrol engines than engine oil for diesel engines... ;-)

This ink is composed of many colors, as can be seen from chromatic experiments. Therefore, this ink is quite exciting, as one can assume that it can react differently to different types of paper.