Differential Additive is filed under Care and fluids in the Spare Auto Parts catalog. The original catalog name is “триботехнический состав "супротек редуктор"”. Say what you are treating: leather, fuel, oil, or coolant. The database does not record which vehicles it fits. Send the make, model, and year, and the desk confirms the match before quoting a price.
Filed in Care and fluids. If you already know the car, start from the vehicle list and send this part name with the generation.