Alcohol (fuel); Automobile fuels; Biodiesel fuel; Diesel fuel; Ethanol (fuel); Fossil fuels; Fuel; Fuel for motor vehicles; Fuel gas; Fuel mixtures; Fuel oil; Fuel with an alcoholic base; Fuels; Fuels in liquid form; Gases for use as fuel; Hydrocarbon fuels; Liquid fuels; Methanol (fuel); Motor fuel; Preparations for enhancing the combustion of fossil fuels; Smokeless fuels; Gasoline; Combustion promoting additives; Petrol additives (petrochemical); Liquid petroleum gas; Combustion enhancers (petroleum products); High-octane petrol; Petrol; Petroleum; Motor spirit