Concentrate used in the manufacture of an engine intake agent contains a water-soluble alcoholic freezing point lowering agent and an effective amount of ammonium salts of carboxylic acids

摘要

A concentrate used in the manufacture of an engine intake agent contains as main component a water-soluble alcoholic freezing point lowering agent and an effective amount of ammonium salt(s) of 5-18C carboxylic acid(s).