Broquet is a fuel catalyst, manufactured in pellet form with each pellet being a combination of different metals bonded together in a unique process. This catalyst is particularly effective when in close proximity with mild steel and therefore the pellets are either enclosed in a simple mesh for inserting into the fuel tank, or contained within a steel container for fitting directly into the fuel delivery line.

A catalyst is something that changes the rate of a chemical reaction, whilst itself remaining unchanged.

It is known that the catalyst when in direct contact with a hydro-carbon based fuel, in a liquefied state, improves the combustion efficiency of that fuel. The exact mechanisms for this are still subject to on-going research which is not unusual in the field of catalysis.

Theoretically a catalyst will last indefinitely, however the contaminates that are ever-present in fuel will eventually adhere to the surface of the pellets. This process is however very slow, and a minimum active life of 250,000 miles/400,000kms can be expected for smaller vehicles, 150,000 miles/240,000kms for trucks and buses, and 6,500 operating hours for off-road and marine applications.

Because the fuel catalyst improves combustion efficiency the benefits will be 


1) Gains in Road-wheel Power, or improved fuel economy (depending upon how the vehicle is driven)

2) Reduced exhaust emissions, particularly HC and CO

3) Cleaner combustion zones and components (spark plugs/injectors, piston rings and crowns) 

4) Stabilisation of fuel (inhibits the deterioration of fuel quality)

Broquet will start to work almost immediately and the customer will first notice that the engine is smoother and more responsive. However the improvement is progressive due to Broquet’s cleaning effect, and therefore depending upon the condition of the engine and how it is driven, may take up to 5,000 miles for the full benefits to be realized.

In-line units can easily be moved between vehicles. However, the In-tank unit should be considered as a one-vehicle treatment system, as once it is in the fuel tank it is not designed to be removed and therefore this can be difficult, and should be undertaken only by a qualified motor engineer.

These components are both positioned in the exhaust system to treat the exhaust gases from the engine, whereas Broquet is fitted into the fuel delivery system to an engine. By improving combustion efficiency and reducing the exhaust gases, Broquet will reduce the amount of work required of these expensive components, thereby extending their working life.

In the United Kingdom Broquet has proven to reduce the two main gases tested for in the annual emission tests, total hydrocarbons (THC) and carbon monoxide (CO) by approximately 20%. This can make the difference between a ‘Pass’ or a ‘Fail’ at the annual emission test, or a roadside check.

Broquet will work with any hydrocarbon-based fuel which is in the liquefied state. This means that any vehicle fueled by petrol, diesel or oil will benefit from having Broquet fitted.

Either type of unit can be used for any application. However, based solely upon cost, the In-tank method is generally recommended for smaller engines (motorcycles, cars and pick-ups) and the In-line units for larger engines (trucks, boats and generators.

All units come with general fitting instructions, but as fitting required working on a fuel system, it is strongly recommended that only qualified motor engineers carry out the fitting of the units.

Fuel saving will vary according to condition of the engine and how it is driven or operated. However typically savings should be in the range of 7% to 12%.

Fuel is purchased by the customer, who also pay for servicing and maintenance of the vehicle. As the use of Broquet results in increasing the life of an engine and components, there is no benefit to the manufacturers of fitting Broquet only an additional cost.