In the USA the use of other hydraulic fluids then LHS (red fluid) or LHM (green fluid) in the Citroën (DS) hydraulic system seems to be of some interest. This most propably due to the fact that Citroën left the north American market in 1973. As a consequence of that there are hardly any Citroën car dealers where a Citroën driver can buy new LHS or LHM for his car. So people start to look for other hydraulic fluids that might do the job also.
Below you'll find some very interesting information on this subject. Of course neither I nor the authors of the articles give any garantuee what soever that the information supplied is correct !