ashless dispersant

Polyisobutylene succinimide (PIBSI) is one of the most important dispersant additives for heavy-duty vehicles, automotive passenger cars, and marine vessels, and the dosage is also the most in automotive engine oil. Polyisobutylene succinimides (PIBSI) commonly are produced by reacting polyisobutylene succinic anhydrides (PIBSA) with an amine. A kind of highly refined base oil is used …

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