 Since it requires more energy to separate hydrogen from oxygen than would be gained from burning the hydrogen produced in this method, the concept of such a device is often stated to be in direct violation of the first and second laws of thermodynamics.Monetary prizes have been offered to sellers or promoters of these devices to demonstrate their claims of increased fuel economy are true, with very few sellers taking the challenges and no device passing the challenges.Arvin Meritor, a Tier 1 supplier of automotive technology, at one time, was experimenting with a plasma reformer technology which would use hydrogen produced from the fuel to enhance engine combustion efficiency and reduce emissions of NOx.