Broquet is a catalyst that when introduced into the fuel tank or fuel line of a diesel, petrol or oil fuelled engine, reacts with the fuel to improve the efficiency of the combustion process. It will treat the fuel for 250,000 miles or 400,000km. Broquet works not only by promoting more efficient combustion but also removing, and then inhibiting the build-up of carbon deposits, waxes and gums that normally form in the combustion chamber. The overall result is significant reductions in exhaust emissions and fuel consumption, more power and less maintenance due to cleaner combustion components.