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The new offer of EXCELLIUM Concentrate Diesel for professional users is a specific transposition making the technology easily accessible for professionals and allowing them to benefit directly from the technology without changing  their current base fuel supply.

TCO (total cost of ownership) approach and environmental  policy are today key factors for Professionals. Therefore, in order to bring customers both engine durability, cost reduction through fuel economy and operating costs optimization, and reduction of their environmental footprint, the TotalEnergies Research centre developed EXCELLIUM Concentrate Diesel additives based on EXCELLIUM technology.


  • Reduction in fuel consumption by up to 5%*

  • Reduction in maintenance costs and extended lifetime  of engines*.

The use of EXCELLIUM Concentrate Diesel can bring a significant reduction in operating costs to professionals, by providing fuel efficiency and economy, reduced maintenance costs and extended lifetime of engine parts.

The combination of complete engine cleanliness (both clean up and keep clean effects), friction reduction and combustion improvement provides immediate fuel efficiency (up to 5% - see test beds and field-tests results) and economy. 

Day after day, engines can get fouled and their  performance is limited due to the accumulation of  deposits affecting sensitive parts.
EXCELLIUM Concentrate Diesel contains new deposit control additives which clean  the injectors – the vital organs in diesel engines - and keep them clean.

EXCELLIUM Concentrate Diesel might  prevent up to 93%1 of injector fouling. It can clean  up as far as 45% 1 of existing fouling as from the second tank fill. Optimum fuel spray pattern and optimum fuel quantity (and timing) delivered to the combustion chamber are restored.

By eliminating injector deposits and improving combustion, EXCELLIUM Concentrate Diesel enables the engine to maintain its performance. Protection against wear, fuel degradation, water contamination and corrosion contribute to an extended lifetime of engines.

Engine performance maintained / Restoration of engine power.

EXCELLIUM Concentrate Diesel maintains engine power in the long-term thanks to the protection of the injectors against all types  of deposits. Its enables restoration of engine power, for example, in only  7 hours**.
** In relation to a non-specifically additized fuel, tests performed in September 2013  with EXCELLIUM Concentrate Diesel STAR on a diesel engine on a test bench  in compliance with reference method CEC F-98-08. The results may vary with the  type of engine.

Additives and Specialty Fuels




Optimum engine protection
Accumulation of injector deposits not only penalizes fuel efficiency, it might also lead to operation troubles and engine malfunctioning. by keeping the injectors exceptionally clean over time, the occurrence of injector failure and unplanned engine maintenance is reduced*.

Corrosion level
Contamination of diesel fuel with water is a significant issue (also favorizing fuel corrosion tendency) and it is vital to separate it quickly and as much as possible from the fuel in case of  ingress. EXCELLIUM Concentrate Diesel enables a rapid separation of the fuel from the water in order to eliminate it.

Injection systems are increasingly sensitive, thus enhancing the performance requirements of the filtration systems. By conferring the fuel with improved filtrability, EXCELLIUM Concentrate Diesel protects the diesel filter from premature clogging.

* In relation to a non-specifically additized fuel.
3 Test conducted with EXCELLIUM Concentrate Diesel HT.


• Reduction of the impact on  environment (polluting and CO2 emissions)** In relation to a non-specifically additized fuel.

By improved running of an engine throughout its life, EXCELLIUM Concentrate Diesel contributes to a reduction in polluting emissions (particulates, carbon monoxide, unburnt hydrocarbons, nitrogen oxide). 
Use of EXCELLIUM Concentrate Diesel has  enabled a reduction in polluting emissions at the exhaust of  a heavy duty vehicle****
- Carbon monoxide: -32%,
- Unburnt hydrocarbons: -55%,
- Nitrogen oxides: -21%,
- Particulates: non-significant reduction (-16%),

Furthermore, the reduction in fuel consumption directly results in equivalent reductions in CO2 emissions: -4.2%.
**** Reduction in polluting emissions in relation to a non-specifically  additized fuel after 17,000 km by UTAC-CERAM in May 2014 with  EXCELLIUM Concentrate Diesel STAR on a Euro 5 heavy duty  vehicle in compliance with the system test protocol of the Certificats  d’Economie d’Energie TRA-EQ-19. The results may vary with the  type of vehicle.



In order to optimize performance, EXCELLIUM Concentrate Diesel STAR will provide the following technical upgrade to diesel fuel:


Deposit control ★★★★★



Stability boost ★★★★

EXCELLIUM Concentrate Diesel STAR is to be used typicaly in the following conditions:


Low / medium quality diesel fuel (high bio-component content, low/medium quality bio-coponent)

Cetane number <47/49

Severe service

Normal storage temperature


Total Excellium