American Power Group (APG), a subsidiary of GreenMan Technologies, has signed an EPA Test Vehicle Exemption agreement with Paper Transport to launch an over-the-road test of its dual fuel system.

The EPA exemption will allow APG to gather critical performance and emissions data on a pre-dual fuel and post-dual fuel basis to support recently announced EPA aftermarket approval requirements.

APG’s dual fuel system converts diesel engines and diesel generators to function more efficiently and at a lower operating cost by seamlessly displacing 40% – 60% of the normal diesel fuel consumption with CNG, LNG, well-head gas or bio-methane.

APG claimed that its dual fuel system is non-invasive to the OEM engine and operates within all OEM performance controls with the flexibility to return to 100% diesel operation at any time.

US based Paper Transport is a regional fleet operator.