Automatic Transmission Fluid (ATF) Additive Package
Automatic transmission fluid (ATF) additive packages are precisely balanced concentrates that deliver the complex combination of friction, anti-shudder, antiwear, oxidation stability, foam control, and seal compatibility properties demanded by modern automatic transmissions. These packages must simultaneously control static and dynamic friction coefficients with extreme precision to enable smooth clutch engagement and prevent lock-up clutch shudder. They are formulated to meet OEM specifications including Dexron VI, Mercon LV, and Toyota T-IV/T-V standards.
Technical Specifications
| appearance | Red-dyed dark amber liquid |
| TBN of package | 20–60 mg KOH/g |
| flash point (COC) | >170 °C |
| friction modifier type | GMO and/or MoDTC based |
| treat rate in finished fluid | 6–12 wt% |
| kinematic viscosity of package (100°C) | 30–100 mm²/s |
Applications
- Conventional step-gear automatic transmission fluids (Dexron VI, Mercon LV)
- Continuously variable transmission (CVT) fluids
- Dual-clutch transmission (DCT) fluids
- Electric vehicle single-speed gearbox fluids
- Power take-off (PTO) and transfer case fluids
Key Features
- Precisely controlled friction durability: maintains consistent friction coefficient through 100,000+ km service
- Anti-shudder protection for lock-up clutch systems prevents vibration in highway cruise conditions
- Balanced antiwear/EP protection for planetary gears, clutch plates, and pump components
- Seal compatibility formulation tested against all major OEM elastomer seal materials
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