As a specialized ashless dispersant additive manufacturer, BASOIL has more than 30 years of experience in the research, development, and production of synthetic ester base oils and lubricant additives. Our facility has an annual production capacity exceeding 8,000 tons of ester base oils, including 2,000 tons of polyester products that filled a domestic market gap. For additives, our capacity consists of 1,500 tons of automotive coolant inhibitors and over 3,000 tons of glass fiber additives annually.

This integrated capability allows us to supply ashless dispersants in stable quantities while maintaining world-class quality comparable to global brands such as Mobil and Heda. Our products are trusted by leading enterprises, including Sinopec, FAW, Shantui, and Liugong, with long-term exports to the European Union and other global markets.

What Are Ashless Dispersants?

Ashless dispersants are key lubricant additives designed to keep engines and lubricating systems clean. Unlike conventional detergent additives that may form metallic ash during combustion, ashless dispersants leave no residue, making them highly suitable for modern engines that require low emissions and longer oil drain intervals.

Main Types of Ashless Dispersants

Polyisobutylene adipimide (PIB-imide)

Polyisobutylene adipate (PIB-ester)

Benzylamine derivatives

Ashless phosphate esters

High molecular weight dispersants

Boron-modified ashless dispersants

These dispersants provide strong sludge control, oxidation resistance, and compatibility with both synthetic ester base oils and PAO base oils.

Technical Performance and Parameters

As an experienced ashless dispersant additive manufacturer, BASOIL ensures every product batch meets industry standards through strict quality control. Key performance parameters include:

Application Fields

BASOIL ashless dispersants are widely applied in:

Automotive engine oils (gasoline and diesel) to support long drain intervals and emission system compatibility.

Heavy-duty industrial lubricants for power generation, mining, and construction machinery.

Fuel additives to prevent sludge and oxidation products in diesel and gasoline systems.

Refrigeration and compressor lubricants — excellent solubility with POE refrigerating base oils.

High-performance aviation and marine lubricants, where ash-free operation is essential.

Why Choose BASOIL

Integrated production: We manufacture both base oils and additives, ensuring compatibility and consistent blending results.

Large-scale capacity: With multiple product lines, we can support pilot orders to bulk shipments.

Proven industry partnerships: Used by well-known OEMs and exported to fixed overseas customers.

Custom solutions: Tailored dispersant formulations with adjustable viscosity, dispersibility, and package compatibility.

Technical expertise: Full analytical lab equipped with GC/MS, RBOT, and sludge dispersion testing.

FAQs

Q: What is the difference between ashless dispersants and metal-based detergents?
Ashless dispersants leave no metallic ash after combustion, making them ideal for engines with emission control systems such as DPF and catalytic converters.

Q: How does BASOIL test product compatibility?
We perform in-house compatibility tests with ester base oils, PAO oils, and elastomers, along with high-temperature oxidation and sludge control tests.

Q: Do you provide product samples?
Yes. BASOIL can supply 1–2 drums of samples for evaluation. Bulk orders can be arranged with flexible MOQs.

Q: What is your lead time?
Sample preparation usually takes 2–4 weeks, while bulk production depends on grade and volume requirements.

Q: Are BASOIL dispersants environmentally compliant?
Yes. Our products comply with REACH, EPA, and Chinese national regulations.