Cabriolet Roof pump Hydraulic oil.
ISO 22 Hydraulic Oil.
This is a Hydraulic oil suitable for use in all makes of Cabriolet/Convertible roof pumps.
It is a thinner grade than standard hydraulic oil and is suited to the lower temperature that cars are often exposed to over night and in winter months.
Dont worry if the fluid in your resevior is a different colour, it is sometimes clear, red or even green but it is all basically the same oil.