CHF 11S Synthetic Hydraulic Fluid

The Pentosin CHF 11S is a high-performance synthetic hydraulic fluid developed for critical automotive applications, including modern power steering systems, power convertible tops, SMG hydraulic pumps, and self-leveling suspension systems. It is engineered to maintain consistent performance in demanding conditions with operating temperatures ranging from -40°C to over 130°C. As a full synthetic formula, CHF 11S is designed to function differently than traditional automatic transmission fluid (ATF). It is vital that users check the cap on their power steering reservoir before adding fluid, as mixing CHF and ATF types can lead to system issues. Pentosin explicitly warns that these fluid types should not be mixed under any circumstances. This fluid serves as an OEM-approved replacement for several BMW-specific part numbers, including 83290429576, 82111468041, and 82110148132. Pentosin, a German manufacturer founded in 1927, is a recognized OE supplier for major automotive brands including BMW, Porsche, and Mercedes-Benz, maintaining high manufacturing standards for their specialized fluid lines.