Valve oil is a lubricant for valves of brass instruments. It is typically mostly mineral oil with a small amount of other ingredients.
Read more about Valve Oil: Use of Valve Oil, Types of Valve Oil
Famous quotes containing the word oil:
“Mr. Chadband is a large yellow man, with a fat smile, and a general appearance of having a good deal of train oil in his system.”
—Charles Dickens (1812–1870)