ATF ULV Automatic Transmission Fluid

ULV (ultra-low-viscosity) ATF is formulated for the newest generation of 8-speed automatic transmissions, where manufacturers use thinner fluid chemistry to reduce internal friction and improve fuel efficiency compared with older ATF generations. MANNOL 8222 is built to this ULV specification, and is not interchangeable with standard-viscosity ATF even within the same "8-speed" gearbox family — using a thicker fluid in a ULV-specified unit can affect shift timing and long-term wear, since the hydraulic control system is calibrated around the thinner fluid's flow characteristics. Confirm your gearbox's exact fluid requirement in your service manual, as manufacturers introduced ULV specs gradually across model years rather than as a clean generational cutover. Manufactured in Germany, sold as genuine imported stock.