A highly efficient airflow system with the product name SDR is available now from JOST. The SDR roof diffusor is an aerodynamic airflow system which reduces the air turbulence at the rear of the vehicle by more than 50%. This results in fuel savings of up to 4%, which has been confirmed by extensive field tests of vehicle manufacturers and transport companies.

The SDR has a positive effect in reducing air turbulence at the rear of the vehicle. The air flowing over the roof is directed through the SDR diffusor, significantly reducing the drag effect caused by the turbulent air. This creates less air swirl and air resistance and thus results in substantial fuel savings of up to 4%. The initial cost of the SDR roof diffusor is recovered after only a few months.

Besides the remarkable savings on consumption, it also reduces the respective CO2 emissions and protects the environment. Two more benefits of SDR roof diffusor resulting from the low air turbulence behind the vehicle are most noticeable during bad weather: The rear of the vehicle remains cleaner and the road view of following vehicles is improved, as less spray mist develops behind the vehicle.

Installing the SDR roof diffuser is very simple. The SDR can easily be installed on the rear frame of a truck body, trailer or semi-trailer. Of course, retro fit installation is also possible. After installation, the SDR roof diffuser is completely maintenance free. The SDR is now part of JOST’s range of products and can be obtained through the JOST worldwide marketing network.

(Contact: Monika Smilovic, Email: monika.smilovic@jost-world.com)