RIDER
SAE 10W-40 | SAE 15W-40 | SAE 20W-50
Product Overview
STARKOL 4T Motorcycle Oil Series is en-gineered to deliver reliable engine prote-ction, superior clutch performance, and consistent power delivery for modern 4-stroke motorcycles equipped with wet clutch systems. Formulated with premi-um base oils and advanced additive tech-nology, it ensures smooth gear shifting, excellent thermal stability, and reliable lubrication under both city riding and de-manding high-temperature conditions.
The 15W-40 and 20W-50 mineral formulations provide robust protection for older and high-mi-leage motorcycles exposed to heavy loads and hot climates, while the 10W-40 semi-synthetic variant offers enhanced cold-start performance and cleanliness for newer and high-performan-ce bikes. Its balanced formulation minimizes deposits, controls oxidation, and helps extend en-gine life, ensuring dependable performance across a wide range of riding conditions.
• Excellent engine protection and clutch performance
• Reliable wear control and oxidation resistance
• Smooth gear shifting with reduced clutch slippage
• Stable lubrication at high temperature and heavy load
• Extended engine life and consistent film strength
| Category | Standards / Approvals |
|---|---|
| 4T 15W-40 | API SJ, JASO MA2 |
| 4T 20W-50 | API SJ, JASO MA2 |
| 4T 10W-40 | API SL, JASO MA2 |
| Property | 10W-40 | 15W-40 | 20W-50 |
|---|---|---|---|
| Kinematic Viscosity @ 40°C, mm2/s, ASTM D445, Min. | Min. 95 | Min. 100 | Min. 155 |
| Kinematic Viscosity @ 100°C, mm2/s, ASTM D445 | 12,5 – 16,3 | 12,5 – 16,3 | 16,3 – 21,9 |
| Viscosity Index, ASTM D2270, Min. | 120 | 110 | 110 |
| Pour Point, °C, ASTM D97, Max. | -30 | -28 | -25 |
| Flash Point, COC, °C, ASTM D92, Min. | 210 | 210 | -220 |
| Density @ 15.6°C, g/ml, ASTM D4052 | 0,870 | 0,875 | 0,880 |