My 1991 Vanden Plas currently takes Castrol HSMO Plus fluid for its power steering. This product ceased production several years ago. A replacement fluid(TRW LM) was produced for such use. This product is out of stock wherever I have looked and doesn't appear to be in production currently. Would anyone have a solution for me as to what product I might be able to source or the action to be taken to acquire a suitable replacement fluid to top off the power steering or additional fluid container in the car. I'd prefer to stick to non-synthetic minerl flluid rather than having to purge all the systems and go for the symthetic version. Thanks for any assistance in this matter.

 

Have a look at this 2018 thread: -
https://www.jaguarforums.com/forum/x...al-oil-200602/