3811 Anti-knock Preparations, Oxidation Inhibitors, gum Inhibitors, Viscosity Improvers, Anti-corrosive Preparations and Other Prepared Additives, for Mineral Oils, Incl. Gasoline, or for Other Liquids Used for the Same Purposes as Mineral Oils

3811 (01/1988-..) Anti-knock Preparations, Oxidation Inhibitors, gum Inhibitors, Viscosity Improvers, Anti-corrosive Preparations and Other Prepared Additives, for Mineral Oils, Incl. Gasoline, or for Other Liquids Used for the Same Purposes as Mineral Oils 38111110 (01/1988-..) Anti-knock Preparations for Motor Fuels Based on Tetraethyl-lead 38111190 (01/1988-..) Anti-knock Preparations for Motor Fuels Based on Lead Compounds (Excl. Tetraethyl-lead) 38111900 (01/1988-..) Anti-knock Preparations for Motor Fuels (Excl. Those Based on Lead Compounds) 38112100 (01/1988-..) Prepared Additives for oil Lubricants Containing Petroleum oil or Bituminous Mineral Oil 38112900 (01/1988-..) Prepared Additives for oil Lubricants not Containing Petroleum oil or Bituminous Mineral Oil 38119000 (01/1988-..) Oxidation Inhibitors, gum Inhibitors, Viscosity Improvers, Anti-corrosive Preparations and Other Prepared Additives for Mineral Oils, Incl. Gasoline, or for Other Liquids Used for the Same Purposes as Mineral Oils (Excl. Anti-knock Preparations and oil LUbricant Additives)