Dibenzo[b]perhydroheterocyclic amines and lubricating oil...
Diesel engine lubricating oil composition for large-bore...
Dispersant additives
Dispersant and antioxidant VI improvers based on olefin copolyme
Dispersant compositions having polyalkylene succinimides
Dispersants derived from heavy polyamine and second amine
Dispersants derived from heavy polyamine and second amine
Dithiocarbamate derivatives and lubricants containing same