Synthetic High-Mileage & Light-Duty Diesel Engine Oil
| Product Name | K6 HEAVY DUTY 15W-40 | SAE Grade | 15W-40 |
| Product Type | Synthetic Engine Oil | Performance Level | API SL/CF |
| Series Positioning | K6 – High Mileage & Light Diesel | Application | Older Gasoline / Light Diesel / High Mileage |
Product Description
KATMOTO K6 HEAVY DUTY 15W-40 is a synthetic engine oil designed for older gasoline vehicles, higher-mileage engines and selected light-duty diesel applications requiring API SL/CF performance. Its robust 15W-40 viscosity provides reliable general-purpose protection, good wear control, engine cleanliness and high-temperature durability for vehicles operating under warm climates, daily commuting, mixed road conditions and routine maintenance.
Key Performance Features
| General-purpose 15W-40 protection
suitable for older vehicles and high-mileage engines. |
API SL/CF performance
supports gasoline engines and selected light-duty diesel applications. |
| Durable oil film
helps reduce wear in warm climate and heavy daily use. |
Engine cleanliness
detergent system helps control sludge and deposits in older engines. |
| High-temperature reliability
helps resist viscosity breakdown under routine service conditions. |
Cost-effective maintenance
practical choice for older passenger cars, light vans and utility vehicles. |
Applications & Performance Level
| Applications | Older gasoline passenger cars, high-mileage vehicles, light commercial vehicles and selected light-duty diesel engines requiring SAE 15W-40 API SL/CF oil. |
| Suitable For | API SL/CF, API SJ/SF backward-compatible gasoline applications, and selected non-DPF diesel applications where API CF and SAE 15W-40 are specified. |
| Important Notice | Not recommended for modern engines equipped with DPF/GPF, advanced after-treatment systems, or engines requiring API SP/SQ, ACEA C, CK-4 or OEM-specific low-SAPS oils. |
| Property | Test Method | Target Typical Value |
| Appearance / Color | Visual | Clear amber liquid |
| SAE Viscosity Grade | SAE J300 | 15W-40 |
| Density @ 15°C | ASTM D4052 | 0.875 g/cm³ |
| Kinematic Viscosity @ 40°C | ASTM D445 | 105.0 mm²/s |
| Kinematic Viscosity @ 100°C | ASTM D445 | 14.5 mm²/s |
| Viscosity Index | ASTM D2270 | 140 |
| CCS Viscosity @ -20°C | ASTM D5293 | 5,800 mPa·s |
| MRV Viscosity @ -25°C | ASTM D4684 | 22,000 mPa·s |
| HTHS Viscosity @ 150°C | ASTM D4683 / D4741 | 4.05 mPa·s |
| Pour Point | ASTM D97 | -33°C |
| Flash Point, COC | ASTM D92 | 230°C |
| Noack Evaporation Loss | ASTM D5800 | 11.5 % mass |
| Total Base Number (TBN) | ASTM D2896 | 8.0 mg KOH/g |
| Sulfated Ash | ASTM D874 | 1.00 % mass |
| Phosphorus | ASTM D5185 | 0.090 % mass |
