This "washes" thing can get a bit confusing.
You can use a variety of pigment sources (enamels, acrylics, oils, inks, etc.) each with its own diluent (paint thinner, alcohol, turpentine(oid), water, etc.)
Then you also have to consider what type of paint covers the area you are washing, enamel, acrylic, lacquer. What is placed on top of all this can also be a factor.
Some combinations work great, some combinations work great SOMETIMES.