Weiba CH-4 is a dependable heavy-duty diesel engine oil for turbocharged and naturally aspirated four-stroke diesel engines. It offers solid antiwear, detergency and oxidation resistance for everyday fleet and industrial service, and tolerates a wide range of fuel qualities. A cost-effective choice for operators running older yet demanding diesel powertrains.
Commercial Vehicles
Typical Data
| Item | 15W-40 | 20W-50 |
|---|---|---|
| SAE Viscosity Grade | 15W-40 | 20W-50 |
| Kinematic Viscosity @100°C (mm²/s) | 14.5 | 19.2 |
| Viscosity Index | 135 | 124 |
| Flash Point (COC, °C) | 228 | 233 |
| Pour Point (°C) | -30 | -25 |
| TBN (mg KOH/g) | 10.0 | 10.5 |
| Sulfated Ash (%) | 1.4 | 1.5 |
Characteristics
- Good detergency keeps engines clean in mixed service.
- Reliable antiwear for turbocharged diesel engines.
- Tolerates variable fuel quality.
- Stable against oxidation at high operating temperatures.
Application Range
- Turbocharged and naturally aspirated diesel trucks and buses.
- General industrial and agricultural diesel engines.
- Medium-duty commercial vehicles.
Base oilSINOPEC · GROUP II–III
CertificationISO 9001 · 14001 · 45001
TraceabilityBATCH-LEVEL
English (UK) 
Français 
Español 
Português do Brasil 
Русский