In a method of producing fuel for start-up to an automobile internal combustion engine which is continuously operated after start-up on alcohol and/or dissociated alcohol and/or liquid hydrocarbonthe improvement comprising the steps of:(a) providing a readily replaceable first container having an initial amount of hydride therein in fluid flow communication with said internal combustion engine,(b) heating said hydride whereby hydrogen is produced leaving a hydride product and a remainder of hydridesaid remainder of hydride being lesser in amount than said initial amount of hydride,(c) initially starting said engine,whereby hydrogen is produced from the hydride for initially starting said engine and said remainder of hydride without regeneration of hydride product is available for the next starting of said engine.