1) TÜV SÜD Middle East tested the fuel efficiency of a BMW and passenger bus both with and without the BE-Fuelsaver installed in the fuel tank. 2) Testing over 70km trips, the BMW saw 14-15% improved fuel efficiency and the bus saw 10-12% improved efficiency with the BE-Fuelsaver. 3) TÜV SÜD concludes that the BE-Fuelsaver significantly reduces fuel consumption in passenger vehicles and buses above the 2.5% tolerance level.