"Ian Johnston" writes:

On Wed, 13 Oct 2004 15:34:41 UTC, (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. As far as I can tell, DOT 3 and DOT 4 brake fluids are
glycol based, and DOT 5 is silicone based according to my 15
minutes of research on the internet.

As far as I know, the only automotive mineral based brake fluids are
the LHM types used on Citroens and Rolls-Royces.

And the older `grosser' Mercs. There is now LHM2 as well.

WARNING: LHM and LHM2 are green, LHS and LHS2 are red. LHS will rip
throught your seals so fast your head will spin!

5606 is probably far easier to find in the US than LHM though.

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