Additives containing:<br> <br><br><br>- a  (C8-18) alkyl polymethacrylate copolymer with  N-[3-(dimethylamino)propyl]methacrylamide, of an average molecular weight (Mw) of more than 10,000 but not more than 20,000, and<br> <br><br><br>- more than 15 % , but not more than 30 % by weight of mineral oils,<br>for use in the manufacture of  lubricating oils
Third country duty