23 LUBRICATING DISPENSING GUNS, CARBURETORS, FUEL PUMPS FOR AUTOMOTIVE VEHICLES, MUFFLERS AND TAIL PIPE PIECES THEREFOR, SPARK PLUG CLEANERS AND SERVICE SETS FOR DISPENSING LUBRICATING OIL, CONSISTING OF A CARRIER AND A NUMBER OF CONTAINERS EACH CONTAINING A QUANTITY OF LUBRICATING OIL, AND OIL BARS, CONSISTING OF A CASING HAVING PUMPS ASSOCIATED THEREWITH AND ADAPTED TO RECEIVE CONTAINERS OF LUBRICANT FOR USE IN DISPENSING LUBRICANT