MANN+HUMMEL developed a new filter medium, the MULTIGRADE F-MB 2000, which offers separation efficiency of 99.95% down to a particle size of four micrometers. This filter medium is used in the MANN-FILTER WK 11 051 fuel filter and ensures that 9,995 out of 10,000 streaming particles are retained. In the independent aftermarket, the MANN-FILTER WK 11 051 is available for Renault Trucks and for Volvo Bus and Trucks. Its seal materials are resistant to, tested with, and ideally suited for standard diesel and biodiesel variants as well as new synthetic diesel fuels such as HVO. They have the relevant OE approvals and ensure a permanent hold and a complete seal of the filter.