Detail 01
Light synthetic formula
It is the light option in the JM piston valve oil range.

Independent shopping perspective
JM001 #1 is a 1.6 oz. light synthetic valve oil developed for instruments with very dense piston valves. It is intended to support a smooth, fast, and even valve clearance. Use it when the valve setup matches the dense piston-valve application identified for this light formula.

Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
It is the light option in the JM piston valve oil range.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
It was developed for instruments with very dense piston valves.
The bottle contains 1.6 oz.