Bob Kuykendall wrote:
Earlier, Ventus B wrote:


The maintenance manual for my ASW 20C glider
says to be sure to only use 'mineral oil' based
brake fluid for the hydraulic brake system.


MIL-5606 is pretty much the standard mineral-based
hydraulic fluid for aircraft applications. It costs
about $6/quart from Aircraft Spruce:

http://www.aircraftspruce.com/menus/...omponents.html

Since the 20C uses a standard Cleveland aircraft brake system , any
aircraft repair facility will also have it. They will be happy to
service your brakes, or likely sell you some fluid, in case you want
some sooner than ordering it.
--
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Eric Greenwell
Washington State
USA