Description •Ultra-Light Valve/Rotor Oil is thinner than the standard weight and is perfect for instruments with very tight pistons or rotors that would feel sluggish with the standard weight. •Professional Valve/Rotor Oil is the standard weight and is perfect for most instruments. It works well on pistons and rotors. •Black Label “Classic” Valve/Rotor Oil is a little thicker than standard valve oil and is designed for older horns with worn pistons or rotors. The thicker oil helps fill in the space between the valve and the casing and allows the valve to operate without any sticking.
