This is the best-selling diesel engine care kit from Archoil. It contains three popular diesel engine care products. The first is a friction modifier. It reduces component wear and improves engine performance. The second is a fuel additive that cleans the entire fuel system and improves injection. And the third is a powerful cleaner that quickly removes deposits and soot from injectors and fuel lines. This kit is simply necessary for every owner of a car with a diesel engine. It will restore engine power and dynamics, clean the fuel system and increase the cetane number of fuel.