MOTUL ALL IN ONE ULTRA DIESEL is a complete multi-action curative fuel additive cleaner for Diesel injection systems used in all types of Diesel engines, indirect or direct injection, naturally aspirated or turbocharged, with or without DPF (Diesel Particulate Filter), with or without SCR (Selective Catalyst Reduction), and using Diesel or Biodiesel fuel. MOTUL ALL IN ONE ULTRA DIESEL is a Diesel additive compatible with Biodiesels B7 (Biodiesel 7%) and B10 (Biodiesel 10%).

MOTUL ALL IN ONE ULTRA DIESEL is ensuring that the engine runs at its best, while protecting it from micro-particles to redeposit. 

By eliminating deposits and fouling from valves, injectors and combustion chambers, MOTUL ALL IN ONE ULTRA DIESEL enables powerful combustion to restore engine performance. MOTUL ALL IN ONE ULTRA DIESEL also increases the Cetane number of the fuel, achieving optimal combustion and reducing fuel consumption.

MOTUL ALL IN ONE ULTRA DIESEL curative multi-action additive is also formulated to aid in the regeneration of the particulate filter, thereby reducing gas and particulate emissions.

MOTUL ALL IN ONE ULTRA DIESEL protects diesel from oxidation and thus prevents the formation of micro-organisms in the fuel circuit.

By cleaning the fuel system, ensuring a optimal combustion, reducing fuel consumption and exhaust emissions, it is the perfect product to use before any upcoming technical inspection and to avoid any breakage in the engine, leading to costly repairs.

MOTUL ALL IN ONE ULTRA DIESEL effectively cleans the entire fuel system, up to the exhaust aftertreatment systems. Removes deposits and fouling inherent in the operation of Diesel engine fuel systems thanks to its curative multi-action properties thus limiting or avoiding:

- injector nozzle fouling
- condensation in the fuel system
- gumming in the injectors and injection pump
- dirtying of combustion chambers and inlet valves