Meinlschmidt has been manufacturing valves for brass instruments since 1866.
What could be more logical than to develop a special care series for this purpose?
For them, the challenge was to ensure the perfect functioning and care of the instruments and at the same time to inspire musicians, who are sensitive to the finest nuances of their instruments.
They attached particular importance to an odorless product that guaranteed smooth operation and protection against corrosion and wear on the instrument, as well as compatibility between the synthetic oils. JM oils also had to be compatible with conventional petroleum-based products. The high demands placed on lubricants eventually led to the development of various synthetic products in different viscosities, some even in the form of a gel.
Options are: 
No. 1-3 Valve Oil (light-heavy Oil for piston valves) 
No. 5 Slide Oil
No. 7 Slide Gel
No. 8 Slide Grease 
No. 11 Rotor Oil
No. 13 Bearing Oil 
No. 13.5 Bearing & Linkage Oil 
No. 15 Spacefiller Oil