Product Description
GTL Base Oil 4# is a gas-to-liquid (gtl) group iii+ base oil, ~4 cst. It offers a high viscosity index, low volatility and excellent oxidation and thermal stability as a premium base stock for blending high-performance engine oils, driveline fluids and industrial lubricants. Typical physical properties are listed below for formulation reference.
Key Performance Features
| Very high viscosity index
GTL chemistry delivers a high VI for excellent multigrade performance. |
Water-white purity
near-zero sulphur and aromatics for clean, stable finished oils. |
| Low Noack volatility
low evaporation loss supports low oil consumption. |
Excellent oxidation stability
stable base for long-drain engine and industrial oils. |
| Group III+ performance
approaches synthetic (PAO) performance at lower cost. |
Broad blending use
ideal for low-viscosity, fuel-economy engine oils. |
Applications & Performance Level
| Applications | Blending of high-performance synthetic and semi-synthetic engine oils, transmission and gear fluids, greases and industrial lubricants requiring a Group III+ (GTL) base stock. |
| Specification | API Group III+ Base Oil — base-oil group classification for this stock. High viscosity index — high VI for multigrade and wide-temperature formulations. Low volatility (Noack) — low evaporation loss for low oil consumption. Oxidation & thermal stability — stable base for long-life finished lubricants. Blending compatibility — compatible with additive systems and co-base stocks. |
| OEM Suitability | Lubricant formulators blending synthetic and semi-synthetic finished lubricants. Validate the finished-oil formulation and performance before production. |
| Important Notice | This is a blending feedstock for formulators, not a finished lubricant. Confirm suitability and treat rates for the target formulation. ”Suitable for” does not imply a finished-oil approval. |
| Property | Test Method | Target Typical Value |
| Appearance / Color | ASTM D1500 | Water-white (Saybolt +30) |
| Base Oil Group | API 1509 | Group III+ (GTL) |
| Kinematic Viscosity @ 40°C | ASTM D445 | 19.5 mm²/s |
| Kinematic Viscosity @ 100°C | ASTM D445 | 4.3 mm²/s |
| Viscosity Index | ASTM D2270 | 135 |
| Flash Point, COC | ASTM D92 | 220°C |
| Pour Point | ASTM D97 | -21°C |
| Noack Volatility (250°C, 1h) | ASTM D5800 | 14.0 % mass |
| Density @ 15°C | ASTM D4052 | 0.820 g/cm³ |
| Sulphur Content | ASTM D5185 | Very low |
| Saturates | ASTM D2007 | ≥ 99 % |
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.