On average, around 10,000 litres of airflows through the air filter per every one litre of fuel that is burned. The air also includes sand and dust particles, soot particles, and abrasion from tyres and brakes, all of which needs to be filtered before reaching vital engine components. Insufficient filtration of the intake air can cause particles to enter the combustion area of the engine. The result is increased wear on pistons, piston rings, cylinder walls, and valves. Additionally, any dirt particles that enter the combustion chamber can work their way into the crankcase, contaminating the oil and reducing the service-life of the oil filter. These airborne contaminants can vary from visible highly abrasive granules, to microscopic particles including tyre rubber, silica, brake dust, pollen and moisture. In hard surface road conditions, the average dust content in the air is 1mg/m3, so an air filter will have trapped around 10 grams of contaminants during its service life. In dusty road conditions, it would increase significantly, by as much as 40 times. An air filter should be replaced regularly as part of scheduled routine maintenance, as per each vehicle manufacturer’s recommendations. In high dust conditions, this should be more frequent. Driving with a heavily loaded filter can cause issues such as excessive fuel consumption, reduced power and restricted performance. It will also cause incorrect air-fuel mixture resulting in increased emissions and soot particles (diesels) which will lead to further problems on diesel particulate filter (DPF) equipped vehicles. febi offers a comprehensive range of air filters in OE matching quality. The best possible filtration performance, i.e. the separation of large and small particles, as well as a high dust holding capacity, ensures optimal engine running in the various load ranges. Alongside individual components for professional vehicle inspections, febi also offers complete maintenance packages. These contain all of the relevant components, with the exception of fluids. In addition to the air filter, these include oil, fuel, and cabin filters. The oil drain plug, and all necessary sealing rings, are included in febi's maintenance packages.