Ester Fully Synthetic High-Temperature Protection Engine Oil
| Product Name | K7 PROTECT 5W-40 | SAE Grade | 5W-40 |
| Product Type | Ester Fully Synthetic Engine Oil | Performance Level | API SQ/SP |
| Series Positioning | K7 – Daily / Multi-Vehicle / Turbo | Application | Daily Turbo / High-Temperature Protection |
Product Description
KATMOTO K7 PROTECT 5W-40 is an ester fully synthetic engine oil developed for mainstream gasoline vehicles, turbocharged engines, high-temperature operation and higher-mileage driving where SAE 5W-40 API SQ/SP oil is required. It provides a thicker protective oil film than 5W-30 while maintaining good cold-start performance, helping protect engines under hot climates, mountain roads, traffic congestion and long-distance driving.
Key Performance Features
| Strong 5W-40 oil film
enhances protection for turbocharged and higher-mileage gasoline engines. |
High-temperature stability
helps resist oxidation, oil thickening and viscosity breakdown. |
| Daily severe-service protection
suitable for traffic congestion, hot climates and long-distance driving. |
Cleanliness control
detergent-dispersant system helps reduce sludge and varnish formation. |
| Modern API SQ/SP performance
supports wear, oxidation and LSPI-related protection for gasoline engines. |
Broad-market suitability
practical choice for mainstream family cars and turbocharged gasoline vehicles. |
Applications & Performance Level
| Applications | Mainstream gasoline vehicles, turbocharged gasoline engines, family cars, SUVs, higher-mileage vehicles and hot-climate applications requiring SAE 5W-40 API SQ/SP oil. |
| Suitable For | API SQ/SP and earlier API gasoline categories where SAE 5W-40 is specified. Suitable for vehicles needing stronger high-temperature viscosity than 5W-30. |
| Important Notice | Not intended for engines requiring ACEA C low-SAPS, DPF/GPF-specific or dedicated OEM-approved oils unless the vehicle manufacturer allows SAE 5W-40 API oil. |
| Property | Test Method | Target Typical Value |
| Appearance / Color | Visual | Clear amber liquid |
| SAE Viscosity Grade | SAE J300 | 5W-40 |
| Density @ 15°C | ASTM D4052 | 0.856 g/cm³ |
| Kinematic Viscosity @ 40°C | ASTM D445 | 86.0 mm²/s |
| Kinematic Viscosity @ 100°C | ASTM D445 | 14.2 mm²/s |
| Viscosity Index | ASTM D2270 | 171 |
| CCS Viscosity @ -30°C | ASTM D5293 | 5,950 mPa·s |
| MRV Viscosity @ -35°C | ASTM D4684 | 22,000 mPa·s |
| HTHS Viscosity @ 150°C | ASTM D4683 / D4741 | 3.75 mPa·s |
| Pour Point | ASTM D97 | -42°C |
| Flash Point, COC | ASTM D92 | 230°C |
| Noack Evaporation Loss | ASTM D5800 | 9.5 % mass |
| Total Base Number (TBN) | ASTM D2896 | 8.8 mg KOH/g |
| Sulfated Ash | ASTM D874 | 0.95 % mass |
| Phosphorus | ASTM D5185 | 0.085 % mass |
