| abstract |
THE INVENTION RELATES TO COMPOSITIONS CONTAINING USEFUL ESTERS FOR REDUCING THE CONSUMPTION OF FUEL. THE CONSUMPTION OF FUEL IN INTERNAL COMBUSTION ENGINES IS REDUCED BY LUBRICATING THEM WITH A LUBRICANT CONTAINING CERTAIN ALCOYL OR ALCENYL ESTERS OF POLYCARBOXYLIC ACIDS, ESPECIALLY SUCCINIC ACIDS SUBSTITUTED IN WHICH THE FUEL SUBSTITUTE 8 CONTAINS. THE PREFERRED ESTERS ARE ALCENYL (USUALLY ALLYL) ACIDIC ESTERS; THESE ESTERS, AND THE CONCENTRATE OF ADDITIVES AND LUBRICANTS CONTAINING THEM, ARE NEW COMPOSITIONS. USE IN PARTICULAR IN AUTOMOTIVE AND TRUCK ENGINES. |