Ashless DispersantsNova Additives

DS-2103

Polyisobutenyl succinimide (PIB 950), high-TBN

Very high nitrogen and TBN in a single component. Soot handling for heavy-duty diesel, and the grade that lets a package blender hit dispersancy targets without adding volume.

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Typical propertiesLiquid

Backbone: PIB 950
Nitrogen: 3.10 – 3.40%
Boron: —
TBN: 75 – 100mg KOH/g

Typical values, not a specification. The binding specification is the one on the certificate of analysis issued against each batch.

Chemical identity

CAS number: 84605-20-9

Cross-reference

Grades a formulator would benchmark DS-2103 against. Naming them is not a claim of equivalence — it is where to start the comparison.

Lubrizol 6406Infineum C9250Afton HiTEC 644

The chemistry

Ashless Dispersants

Soot and sludge suspension in engine oils

Typical treat rate2.0 – 8.0 %

Polyisobutenyl succinimides — a polar head that binds contaminant, an oil-soluble PIB tail that keeps it suspended. This is the largest additive class by volume in any crankcase formulation. Borated grades add antiwear and improve seal and thermal performance; higher-TBN grades carry more acid-neutralising reserve.

Used in

Passenger-car & heavy-duty engine oilsMarine cylinder oilsTwo-stroke oilsTransmission fluidsFuel additive packages

Where DS-2103 is specified

Engine Oils

Passenger-car, heavy-duty and gas engine crankcase formulations, including low-SAPS.

Driveline & Transmission

Automatic and manual transmission fluids, axle oils, EV reduction-gear fluids.

Other grades in Dispersant

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Documentation

A full technical data sheet, safety data sheet in the language of the receiving country, REACH status statement and SVHC declaration are issued with every enquiry for DS-2103. Certificates of analysis accompany each consignment and retained samples are held for the full shelf life.

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