Additives containing:<br> <br><br><br>- calcium salts of heptylphenol reaction products with formaldehyde (CAS RN 84605-23-2), and<br> <br><br><br>- mineral oils,<br>having a total base number (TBN) of more than 40 but not more than 100, for use in the manufacture of lubricating oils or overbased detergents for use in lubricating oils
Tariff preference