Replaces FLUIDE XLD FE Material codes and pack sizes 213821 12 X 1L 213720 20L 213721 208L New generation automatic transmission fluid based on an advanced synthetic technology allowing extra long drain and very high performance needed for the demanding requirements of modern heavy duty automatic gearboxes. Particularly recommended for use on heavy duty automatic transmissions (found on buses, refuse trucks, utility vehicles etc.) manufactured by Voith, and ZF requiring maximal drain intervals.