My power steering pump started groaning last week and I noticed that I was at the minimum fill level on the reservoir. After searching threads here on dweb I bought a bottle of Pentosin CHF-11s for $20. When I opened the reservoir and tested the fluid, it was brown in color, not green like the Pentosin. Then when I got home I noticed a big puddle of brown fluid on my garage floor. The pump had developed quite a leak and has since been replaced. by the way, I also called the dealer and they have the OEM fluid in stock for $29/liter.