Mineral-Based Locomotive Engine Oil
Formulated with refined mineral base oil and conventional additive packages. It offers high cost performance and meets basic lubrication requirements for low-load, short-duty-cycle operation. Suitable for conventional shunting locomotives and low-load short-distance locomotives, it is an entry-grade locomotive engine oil.
Semi-Synthetic Locomotive Engine Oil
Blended with mineral base oils and synthetic hydrocarbon base oils, with an upgraded additive system. It features better oxidation stability and anti-wear performance than mineral-based grades, with an oil drain interval of up to 10,000 hours. Suitable for mainline freight and passenger locomotives, it is the mainstream product widely used in the railway industry.
Fully Synthetic Locomotive Engine Oil
Produced with PAO (poly-alpha-olefin) or ester-type fully synthetic base oils, combined with high-performance additive systems. It provides ultra-long oxidation stability, excellent wide-temperature performance and ashless anti-wear properties, with an oil drain interval of up to 15,000 hours. Ideal for high-power AC drive heavy-duty locomotives, locomotives operating in extreme cold or high-temperature environments, and high-end imported locomotives.
Railway Locomotive Engine Oil – Bilingual Technical Parameter Comparison Table
This table integrates core technical parameters of railway locomotive engine oil, designed for foreign trade communication and product selection. All parameters comply with international standards (API) and Chinese railway industry standards (TB/T 2544-2020, GB/T 3141), suitable for high-power, heavy-duty and imported locomotives.
1.Core Technical Parameter Comparison
| Classification & Specification | RBOT (min) | Four-Ball Wear Scar (mm) | Total Base Number (mgKOH/g) | Oil Change Interval (h) | Kinematic Viscosity @100℃ (mm²/s) | Low-Temperature Dynamic Viscosity | Applicable Scenarios |
| By Locomotive Type | – | – | – | – | – | – | – |
| Mainline Locomotive Diesel Oil | ≥ 300 | ≤ 0.4 | Initial ≥10, Residual ≥4.0 | ≥ 10000 | 12.5-21.9 (Suitable Viscosity) | Suitable for Wide Temperature | High-power mainline freight/passenger locomotives |
| Shunting Locomotive Special Oil | ≥ 280 | Customized | Initial ≥8 | Customized | 12.5-16.3 (Suitable Viscosity) | ≤ 6200mPa·s @ -20℃ | On-site shunting & short-distance locomotives |
| Low-Temperature Resistant Oil | ≥ 290 | ≤ 0.45 | Customized | Customized | 12.5-16.3 (Suitable Viscosity) | ≤ 15000mPa·s @ -40℃ | Locomotives in high-cold regions |
| By Quality Grade | – | – | – | – | – | – | – |
| T3 Grade (Domestic) | ≥ 250 | ≤ 0.5 | Initial ≥8, Residual ≥3.5 | ≥ 8000 | 12.5-16.3 | Suitable for Normal Temperature | Medium-power shunting locomotives |
| T4 Grade (Domestic) | ≥ 300 | ≤ 0.4 | Initial ≥10, Residual ≥4.0 | ≥10000 (Up to 15000) | 12.5-21.9 | Wide Temperature Adaptability | High-power mainline & imported locomotives |
| API CK-4 (Imported Standard) | ≥ 280 | ≤ 0.45 | Customized | Customized | 12.5-21.9 | Suitable for Imported Locomotives
|
GE/EMD & other imported high-power locomotives |
| By Base Oil Type | – | – | – | – | – | – | – |
| Mineral-Based | ≥ 220 | ≤ 0.55 | Initial ≥7 | Short Cycle | 12.5-16.3 | Normal Temperature Use | Entry-level shunting locomotives |
| Semi-Synthetic | ≥ 280 | ≤ 0.45 | Initial ≥9 | ≈ 10000 | 12.5-21.9 | Wide Temperature Adaptability | Mainstream railway locomotives |
| Fully Synthetic | ≥ 350 | ≤ 0.38 | Initial ≥11 | ≈ 15000 | 12.5-21.9 | Extreme Temperature Adaptability | High-end imported & heavy-duty locomotives |
2.Key Viscosity Grade Parameters
| Viscosity Grade | Kinematic Viscosity @100℃ (mm²/s) | Low-Temperature Dynamic Viscosity | Applicable Regions/Seasons |
| SAE 40 | 12.5-16.3 | Single-grade, High-Temperature Focused | High-temperature regions, year-round use |
| SAE 50 | 16.3-21.9 | Single-grade, High-Temperature Focused | Heavy-duty locomotives in high-temperature regions |
| SAE 10W-40 | 12.5-16.3 | ≤ 13000mPa·s @ -25℃ | High-cold regions, winter use |
| SAE 15W-40 | 12.5-16.3 | ≤ 6200mPa·s @ -20℃ | Nationwide, four-season use |
| SAE 20W-50 | 16.3-21.9 | ≤ 13000mPa·s @ -15℃ | Heavy-duty freight locomotives in South China |
Important Notes for Foreign Trade
1. All parameters comply with TB/T 2544-2020, GB/T 3141 and API standards;
2. “Customized” parameters can be adjusted according to customer’s locomotive models and operating conditions;
3. Do not mix domestic T3/T4 grade oils with API grade oils for imported locomotives;
4. For bulk orders, we can provide third-party test reports.
For more product details or customized solutions, please contact us.
Small: 18L/barrel
Large: 200L/barrel, 1000L/IBC ton barrel
Customizable: LOGO and product information (MOQ negotiable)
