Common Rail Diesel System Clean & Protect is designed for all high-pressure diesel systems and direct injection such as Common-Rail, pump-injector etc. developed and designed for the specific requirements of high-tech products of the latest generation. Removes reliably and sustainably smallest particles of contamination in the whole system. Ensures optimum atomization and effect of the diesel fuel and ensures lubrication of the entire system, in particular the high-pressure pump. It eliminates water drops in diesel fuel and absorbs combustion disturbing moisture. Especially recommended for Longlife Service intervals. Suitable for soot particle filters.