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:
“Can he who has discovered only some of the values of whalebone and whale oil be said to have discovered the true use of the whale?”
—Henry David Thoreau (1817–1862)