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Today, with the introduction of Euro-III engines it is possible to achieve almost zero fuel consumption in coasting mode. This means more the distance covered in coasting mode better will be the overall fuel economy of the vehicle. In turn, distance covered by the vehicle in coasting mode depends on the driveline frictional losses i.e. for a particular moving inertia of a vehicle higher the inherent driveline frictional loss lesser will be the distance negotiated by the vehicle. The proposed methodology has been established to determine this inherent frictional force component acting all across the driveline while the vehicle is run in coasting mode under no-load condition. The application of this methodology is limited to vehicles with manual transmission.