API SN/SP Passenger Car Engine Oil Additive Package
API SN/SP passenger car engine oil additive packages are complete, fully balanced additive concentrates designed for blending with Group II, III, or IV base oils to produce finished engine oils meeting the latest API SN Plus, SP, and ILSAC GF-6A/GF-6B specifications. These packages contain optimized combinations of detergents, dispersants, antiwear additives, antioxidants, friction modifiers, corrosion inhibitors, and foam suppressants. They are tested and approved against the latest ASTM and CEC engine sequences.
Technical Specifications
| appearance | Dark amber liquid |
| SAPS content | Mid-SAPS or low-SAPS grades available |
| TBN of package | 50–150 mg KOH/g |
| flash point (COC) | >165 °C |
| treat rate in finished oil | 8–14 wt% |
| kinematic viscosity of package (100°C) | 50–200 mm²/s |
Applications
- Passenger car motor oils (PCMO) meeting API SN Plus and API SP specifications
- ILSAC GF-6A and GF-6B engine oils for fuel economy and engine protection
- European ACEA A1/B1, A3/B3, A3/B4 approved engine oil formulations
- Japanese JASO DL-1 and GL-1 engine oils for direct-injection turbocharged engines
- OEM-approved engine oils meeting Toyota, Honda, VW, BMW, and Mercedes-Benz approvals
Key Features
- Fully balanced package reduces formulation risk and accelerates time-to-market for lubricant blenders
- API SN Plus and SP approvals secured against the full ASTM engine test sequence suite
- Available in mid-SAPS and low-SAPS variants for ACEA C2/C3 and OEM DPF-compatible formulations
- Optimized friction modifier content enables GF-6B fuel economy performance claims
Grade Variants & Supplier Reference
Specific grades available from leading Chinese-market suppliers. Spec sheets and lead-time vary per grade — request a quote to confirm availability.
Spec sheet not published — request TDS via inquiry form.
API SN/SP-compatible PCMO package; treat rate ~10-12% in 0W-20 / 5W-30 / 5W-40.
View on supplier site →Big 4 Equivalents Cross-Reference
Approximate functional equivalents from leading global additive houses (Lubrizol, Infineum, Afton Chemical, Chevron Oronite). Chemistry tier, treat rate, and additive synergy may differ — always verify against the supplier TDS before formulation lock-in.
- OS-22001 (SN)
- OS-22411 (SN PLUS)
- OS-22600 (SP)
- P-6320 (SN/SP)
- P-6361 (SP/RC)
- HiTEC 11211 (SN)
- HiTEC 11221 (SP)
- OLOA 55520 (SN)
- OLOA 55620 (SP)