An engine oil additive package is a pre-blended combination of detergents, dispersants, antiwear agents, antioxidants, friction modifiers and other components that turns base oil into finished engine oil. Instead of blending a dozen individual additives, oil manufacturers add one package at a typical treat rate of 5-15% and achieve the full performance specification. This guide explains the package landscape and how to buy.
What Is Inside an Engine Oil Additive Package?
- Detergents (overbased calcium sulfonate, salicylate, phenate): neutralise acids, keep piston crowns clean.
- Ashless dispersants (PIBSI): suspend soot and sludge.
- ZDDP: antiwear, antioxidant, anticorrosion.
- Antioxidants (aminic and phenolic): control oxidation and viscosity growth.
- Friction modifiers, antifoam, pour point depressant: fine-tune performance.
Performance Levels and Package Grades
| API level | Minglan package | Treat rate |
|---|---|---|
| API SQ / ILSAC GF-7 | T66190, HP80110 | 8.3-8.7% |
| API SP / GF-6 | HP80100, T9108, T6189E | 7.9-8.7% |
| API SN | T6178A, T9106 | 7.3-8.7% |
| API CK-4 / CJ-4 / E11 | T63199, T9209, T3199B | 12.5-14.7% |
| API CI-4 | T66330, T3161 | 5.0-12.0% |
The full lineup is listed on the engine oil additive package page.
How to Choose an Engine Oil Additive Package
- Define the target specification – API (SP, SN, CK-4), ACEA (A3/B4, C2-C6), ILSAC, and the OEM approvals you must meet.
- Match base oil group – Group II/III for modern packages; confirm treat rate with your base oil.
- Check the metals balance – calcium, zinc, phosphorus, magnesium, molybdenum – against the spec limits (e.g. phosphorus ≤ 0.08% for SP).
- Request the full package test report and, ideally, run the target engine tests before scale-up.
- Verify supply stability – the package is the identity of your product; choose a manufacturer with consistent quality.
Why Buy Packages From Minglan
Shanghai Minglan Chemical develops and produces engine oil additive packages from API SG up to the latest API SQ/GF-7, covering gasoline, heavy-duty diesel, natural gas and marine engines. Every package ships with full analytical data. Contact info@minglanchem.com for formulation support and pricing.
