Detergents (Metallic Dispersants)

Salicylates Sulfonates Phenates Sulfophenates.

Ashless Dispersants

N-Substituted long-chain alkenyl succinitmides : High-molecular-weight esters and polyesters Amine salts of high-molecular-weight organic acids Mannish base derived from high-molecular-weight allcylated phenols *Copolymers of met acrylic or acrylic acid derivatives containing polar group such as amines amides, imides ,' imines , hydroxyl , ether , ect. ; Ethylene-propylene containing Polar groups as above.

Oxidation and Bearing ,Corrosion Inhibitors

Organic phosphites Metal dithiocarbamates Sulfurized olefins Zinc dithiophosphates .

Antioxidants

Phenolic compounds Aromatic nitrogen compounds Phosphosulfurized terpenes, Zinc dithiophoslohates.

Viscosity Index improver

Polymethacrylates Ethylene-propylene copolymers (OCP) Styrene-dine copolymers Styrene-ester copolymers .

Antiwar Additives

Organic phosphites, Sulfur zed olefins Zinc dithiophosphates Alkaline compounds as acid neutralizers.

Pour Point Depressants

Wax alkylated naphthalene , polymethacrylates Crosslinked wax alkylated phenols Vinylacetate/fumaric-acid-esters copolymers Styrene-ester copolymers.