HMSO Hydraulic Fluid - Import Auto Supply

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HMSO Hydraulic Fluid

Tech Tips > Strange Fluids in Your Car

Probably the most unusual fluid we sell is Hydraulic System Mineral Oil. This was first used in the Rolls Royce '79-up brake and suspension system, and later in various other vehicles that use a hydraulic system for power steering and/or power brakes, as well as some self-leveling systems. The main applications of this are Jaguar XJ6 '88-up in the power brakes, self-leveling suspensions, and from '90- the power steering (the actual braking system is still DOT4.); the Audi 5000 power steering 85-90, and BMW Nivomat.

The best way to identify a system using this fluid is a reservoir lid that is green, or a sticker with a green drop. Audi and BMW may have a sticker that says CHF7.1, which is the German Pentosin equivalent. Later Audis use a synthetic version also made by Pentosin, CHF11s.  Mercedes-Benz uses a special fluid in their self-leveling systems, which we carry under the Mercedes part number. As far as we know, it is unique to Mercedes and not interchangeable with anything.  It is NOT SAFE to use anything else in a system that is designed for an HSMO fluid; we have seen expensive BMW Nivomat shocks and Audi power steering components damaged by incorrect fluids. (There are also Hondas that use a special power steering fluid, we now have a source on that as well.)

We carry: Lucas GMF2100 green HSMO 1L  now packaged as TRW PFM201 $15.95
               Castrol JLM9886 green HSMO with the spout needed to fill the Jaguar reservoirs .5L $10.95
               Pentosin CHF 7.1 green HSMO 1 L (BMW 81-22-9-407-549) $18.00
               Pentosin CHF 11s synthetic HSMO 1 L (BMW 82-11-1-468-041; Porsche 000.043.203.33) $21.95
               Mercedes 000-989-91-03 Hydraulic Suspension Fluid 1 L $15.00
               Honda 08206-9002, 12 fl oz, $3.95
Prices current as of 1 Dec 2008, unfortunately subject to change without notice

 
 
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