Product Description
KATMOTO GEAR EP 80W-90 is an extreme-pressure API GL-5 automotive gear oil for drive axles, differentials and final drives in commercial, construction and mining vehicles. Its sulfur-phosphorus EP additive system provides outstanding load-carrying and shock-load protection for hypoid gears, with strong thermal and oxidation stability, rust, corrosion and foam protection for durable, long-life gear performance under heavy load.
Key Performance Features
| High EP load-carrying
API GL-5 extreme-pressure performance for hypoid gears under shock load. |
Heavy-load durability
protects drive axles and final drives in heavy and severe-duty equipment. |
| Thermal & oxidation stability
resists thickening and deposits under high gear temperatures. |
Rust & corrosion protection
protects gears and bearings against rust and corrosion. |
| Foam & shear control
stable performance with low foaming for consistent lubrication. |
Wide equipment suitability
suitable for commercial, construction and mining drive axles. |
Applications & Performance Level
| Applications | Drive axles, differentials and final drives in commercial trucks, construction and mining vehicles where SAE 80W-90 API GL-5 extreme-pressure gear oil is specified. |
| Specification | API GL-5 — extreme-pressure performance for hypoid gear applications. MIL-PRF-2105E — meets the performance requirements of MIL-PRF-2105E (licence not implied). ZF TE-ML 05A/16B/21A — suitable for ZF axle gear-oil requirements. Mack GO-J · MAN 342 — suitable for Mack and MAN axle gear-oil specifications. OEM hypoid axles — suitable for OEM heavy-duty hypoid axle applications specifying 80W-90 GL-5. |
| OEM Suitability | Commercial, construction and mining drive axles, differentials and final drives specifying SAE 80W-90 API GL-5. Use only where SAE 80W-90 GL-5 is specified by the manufacturer. |
| Important Notice | Use only where the equipment manufacturer specifies this grade/type and a matching performance level. ”Suitable for” does not mean official approval unless separately certified. Always follow the OEM manual. |
| Property | Test Method | Target Typical Value |
| Appearance / Color | Visual | Clear amber liquid |
| SAE Gear Grade | SAE J306 | 80W-90 |
| Density @ 15°C | ASTM D4052 | 0.890 g/cm³ |
| Kinematic Viscosity @ 40°C | ASTM D445 | 140 mm²/s |
| Kinematic Viscosity @ 100°C | ASTM D445 | 14.5 mm²/s |
| Viscosity Index | ASTM D2270 | 100 |
| Brookfield Viscosity @ -26°C | ASTM D2983 | 90,000 mPa·s |
| Flash Point, COC | ASTM D92 | 215°C |
| Pour Point | ASTM D97 | -27°C |
| FZG Scuffing (A/8.3/90) | ISO 14635-1 | ≥ 12 fail stage |
| Copper Corrosion (3 h, 121°C) | ASTM D130 | 1b |
| Foaming Tendency | ASTM D892 | Pass |
Note: The target values above are typical product values for reference only; final production data is subject to the official KATMOTO Technical Data Sheet (TDS) and laboratory test report.
