This is a brand new, sealed bottle of Liqui Moly ATF Top Tec 1900 (part #20028), a fully synthetic low-viscosity automatic transmission fluid developed for modern vehicles, especially Mercedes-Benz 7-speed transmissions (MB 236.15 specification). The 1-liter bottle is perfect for top-offs or service on compatible vehicles requiring high-performance ATF that offers excellent wear protection, smooth shifting, and long service life.