Thermal stability improver for lubricating oils: Thermal stability improver for other liquids used for the same purpose as mineral oils

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

Oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives for mineral oils, including gasoline, or for other liquids used for the same purposes as mineral oils (excluding anti-knock preparations and oil lubricant additives)