The admissible gross weight for road tankers in Europe is increasingly being reduced and controlled more strictly. This article describes the development of a road tanker in co-operation with the dutch transport company Boerman transport based on an aramid fiber reinforced vinylester resin, its specifications, design and manufacture and the tests on this vehicle.The result of this development is a road tanker whose overall weight could be reduced by approx. 400 kg. This means that the cylindrical tank became more than 25% lighter. Overpressure, loading, unloading and driving tests were run with success. The test results suggest a still higher saving potential.