When it comes to filters most people rightly understand the importance of a quality oil filter, but wrongly believe that quality is not so important when it comes to air filters.  
 
ADE filter supplier MANN-FILTER says the importance of the air filter has increased enormously in modern vehicles and has highlighted some key reasons why skimping on air filter quality could end up costing more than you think.  

Modern engines are becoming increasingly efficient and are therefore making ever higher demands on air filters. With the increase in the air volume passing through the filter, both the load on the air filter and its importance have risen proportionately. An efficient air filter is the basis for optimum fuel combustion and so the air filter can have an important impact on both fuel consumption and emissions.

If water enters the air filter housing (as a result of heavy rain, for example), the correct function of simple air filters can no longer be guaranteed, which leads to a drop in engine power and performance. As the illustrations show there is a world of difference between a water affected MANN-FILTER and a lower quality filter. MANN-FILTERs also feature a flame-retardant impregnation that protects both engine and the vehicle occupants.

Another important factor is the protection air filters provide to other components. The technologies and materials that are used in internal combustion engine blocks have become much more sensitive. If low efficiency air filters are used, the hard surface coating of the cylinder block will be attacked by particles that have not been removed and an active wear process begins. High quality air filters from MANN-FILTER will protect valuable engine components far more effectively.

MANN-FILTERs may cost a little more, however, the price of a new air filter from MANN-FILTER is nothing compared to the cost of a new engine block, which could be the long term cost of poor quality air filters. Even the replacement of a clogged air flow meter will cost several times the price of a high quality air filter.

In the long term the false economy of cheaper filters can end up costing much more.