The project is funded by the Swedish Road Administration. The machines included in the scope are: tractors, crawler excavators, wheeled excavators and wheel loaders. The project consists primarily of: o Gathering and summarizing test procedures, cycles and overall methods relating to relevant fuel consumption o Interviews with end-users of above-mentioned machines to establish mutual understanding of how to make available a relevant fuel consumption declaration that the users find useful o Conclusions drawn from the available material o Recommendation of further steps The total consumption of diesel fuel used by heavy non-road mobile machinery, NRMM, was approximately 1,150,000 m3 in the year 2006 [1]. Comparative numbers can be found in the transport sector in which the trucking community has a consumption of approximately 1,970,000 m3 diesel fuel in the year 2007 [1]. However, the transport sector have historically had a significant focus and awareness on the issue of fuel consumption and thereby creating a clearly stated ambition for improvement whereas the non-road machine use have not had the same development. It is likely that the complex usage of some of these non-road mobile machines is complicating the effort of relating engine and machine data to relevant fuel consumption. Currently the information available in the advertised fuel consumption is very difficult for a consumer to understand and evaluate. This difficulty in turn leads to the need of a new definition of the fuel consumption. The question also arise if the vehicle fuel consumption, as in for instance litres per hour, or the vehicle fuel efficiency, as for instance litres per moved tonne, should be used.