Mineral hydraulic fluid for hydraulic power units in Citroën XM, XANTIA, BX, CX, SM, GS For hydraulic power units in Citroën ID and DS sold after September 1966 (components painted green) For brake circuits and hydraulic clutch control systems in utility vehicles Citroën N, P and C35 For the Peugeot 405X4 vehicle level adjuster. Not miscible and not compatible with some synthetic fluids.