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Norbert and Petra Classen GBR Object : Use of air filters KN, cleansing for engines Fitu Safe, Power Liquid. On October the 29th 1996 we equipped our truck MAN 8223 with a KN air filter . However we've subjected to a washing with Fitu Safe cleansing the engine, the gear, and the differential. Some oils " Divinol " associated to Power Liquid have been utilized for engine , gear and differential . In that moment our vehicle had travelled 93.000 miles and showed a fuel consumption of 20,74 l. per 62 miles . Once reached the 100.000 miles travelling we've found out a consumption of 16,68 l. per 62 miles . Moreover, when vehicle is subjected to the biggest stress , it's strong lower than the one observed before. The manoeuvre of gear is much more agile and engine oil , after a travelling of 7.456 miles , has still a yellow-gold colouring . We' re much satisfied with the result , as now we're able to save costs !!!We will use these products for other vehicles. Best regards

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