Recommended oil for Rotax rotors?

[bkessler]

I’m wondering what folks find works best for their Rotax rotors. Recommendations?

[harrisonreed]

Ultrapure light

[Bonearzt]

Actually need two...
A thin "piston" oil for the rotor body dropped into the slide receiver
I use either Al Cass or a similar oil from Players Products
and a thicker oil for the spindle placed under the stop arm,
Hetman 13 or similar

[bkessler]

Thank you both!

[harrisonreed]

And a third type, ball joint, is helpful in keeping the all joints from wearing and going clickety clack.

I use the hetmans ball joint (15 I think) for that, and then ultrapure light for the core and ultrapure bearing/linkage for the stop arm and bearing plate hole.

[mrdeacon]

Ultrapure light

I switched to Ultrapure after Hetman became so difficult to find. Works great on my Hagmann valves and Olsen rotors.