Diesel Engine Oil is specially formulated for heavy-duty diesel engines, providing superior protection under high temperature, high load and long-distance operation.
Key Features:
- Excellent high-temperature detergency & dispersancy, reducing soot, sludge and deposits
- Outstanding anti-wear, anti-oxidation and anti-corrosion performance
- Stable viscosity at high and low temperatures, ensuring smooth cold start
- Extended drain interval and long service life
- Compatible with exhaust after-treatment systems (where applicable)
- Suitable for trucks, buses, construction machinery, generators and agricultural equipment
Typical Grades:
API CK-4 / CJ-4 / CI-4 / CH-4
SAE 15W-40, 20W-50, 10W-30, 5W-40
Heavy Duty Diesel Engine Oil Technical Data Sheet
（API CK-4/CJ-4/CI-4/CH-4）
1.Basic Information
| Item | Unit | Typical Value |
| Product Name | — | Heavy Duty Diesel Engine Oil |
| Performance Level | — | API CK-4 / CJ-4 / CI-4 / CH-4 |
| Viscosity Grade | — | SAE 15W-40（General mainstream） |
2.Physicochemical Indexes
| Item | Unit | Typical Value |
| Kinematic Viscosity @ 40℃ | mm²/s | 102.00 |
| Kinematic Viscosity @ 100℃ | mm²/s | 14.70 |
| Viscosity Index (VI) | — | ≥ 130 |
| Pour Point | ℃ | ≤ -30 |
| Flash Point (COC) | ℃ | ≥ 220 |
| TBN | mgKOH/g | 10.0 ~ 13.0 |
| Water Content | % | ≤ 0.03 |
| Mechanical Impurities | % | ≤ 0.01 |
| Density @ 20℃ | kg/m³ | 880 ~ 890 |
| Foam Characteristics | mL/mL | Complies with API |
| High Temp Detergency & Dispersancy | — | Excellent |
| Anti-wear Performance | — | Excellent |
| Oxidation Stability | — | Excellent |
| Soot Control | — | Excellent |
| Seal Compatibility | — | Good |
3.Core Differences of Each API Grade
| API Grade | Chinese Description | English Description |
| API CK-4 | Premium grade, compliant with China VI/Euro VI emissions standards, extended oil change intervals, superior soot control, compatible with aftertreatment systems. | Top tier, meets Euro VI / China VI, long drain, superior soot control, after-treatment compatible |
| API CJ-4 | Low ash content, suitable for heavy-duty trucks equipped with DPF/SCR aftertreatment systems; high-temperature oxidation resistance and wear resistance. | Low SAPS, suitable for DPF/SCR equipped engines, excellent oxidation & wear protection |
| API CI-4 | Heavy-duty, high-temperature and high-load operating conditions; suitable for China III/IV engines; extended oil change intervals. | Heavy-duty performance, for China III / IV engines, good high temp stability |
| API CH-4 | Classic Heavy-Duty Diesel Engine Oil, suitable for conventional diesel engines, construction machinery, and generator sets. | Classic heavy-duty diesel engine oil, for conventional diesel engines, construction & gensets |
4.Application Scope
Specially designed for heavy-duty diesel engines, suitable for diesel-powered equipment including trucks, buses, construction machinery, generator sets, marine vessels and agricultural machinery, providing reliable lubrication and protection under high-temperature and heavy-load conditions.
Small: 4L/barrel, 18L/barrel
Large: 200L/barrel, 1000L/IBC ton barrel
Customizable: LOGO and product information (MOQ negotiable)
