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Diesel Engine Oil CI-4 20W-50 for Heavy-Duty Diesel Engines

Product Description

Diesel Engine Oil CI-4 20W-50 is a high-performance heavy duty diesel engine oil designed for trucks, construction machinery, mining equipment, and industrial diesel engines operating under extreme conditions. Formulated with high-quality base oils and advanced additive technology, it provides excellent wear protection, soot control, and oxidation stability. This diesel engine oil ensures extended oil drain intervals, improved fuel efficiency, and reliable engine cleanliness. Suitable for engines equipped with EGR systems and meeting API CI-4 specifications, it delivers stable performance in high temperature and heavy-load environments.

• Packaging: 18L, 200L

• Customized packaging available upon request

Specifications and Approvals

• API CI-4/SL
• ACEA E7
• Cummins CES- 20078
• Cummins CES- 20077
• Cummins CES- 20076
• Volvo VDS-3
• JASO DH-1
• CAT ECF-2
• MAN M 3275
• MB Approval 228.3
• Mark EO-N
• Renault RVI RLD-2
• MTU Type 2
• DEUTZ DQC III-18
• Detroit Diesel DDC 93K215
• |Global DHD-1

Performance Benefits

• Excellent Wear Protection

Protects engine components under heavy load conditions
• Superior Soot Control

Maintains viscosity stability and reduces sludge formation
• Improved Fuel Efficiency

Reliable performance in extreme heat environments
• Improved Fuel Efficiency

Helps reduce fuel consumption and operating costs
• Outstanding Engine Cleanliness

Prevents deposits and extends engine life

Applications

Applications of CI-4 20W-50 Diesel Engine Oil

CI-4 20W-50 diesel engine oil is a high-performance heavy duty engine oil designed for diesel engines operating under high load, high temperature, and harsh working conditions.

Heavy-duty trucks and long-haul transport vehicles
Construction machinery such as excavators and loaders
Mining equipment operating under extreme conditions
Agricultural machinery including tractors and harvesters
Industrial diesel generators and power systems

Recommended for engines requiring API CI-4 performance level, ensuring reliable protection and long service life.

This diesel engine oil is widely used in construction machinery applications and heavy-duty diesel engines.

Which Engines Use CI-4 20W-50 Diesel Engine Oil?

CI-4 20W-50 diesel engine oil is suitable for heavy-duty diesel engines used in trucks, construction equipment, mining machinery, and industrial applications.

It is especially ideal for engines operating in high-temperature environments or under continuous heavy loads, where stronger oil film protection is required.

CI-4 20W-50 vs 15W-40 Diesel Engine Oil

Compared with 15W-40 engine oil, 20W-50 diesel engine oil provides higher viscosity and stronger oil film protection.

Higher viscosity – Better protection under extreme temperatures
Stronger oil film – Suitable for heavy-load engines
Improved durability – Ideal for harsh working environments

Therefore, 20W-50 engine oil is more suitable for high-temperature regions and severe operating conditions.

FAQ – CI-4 20W-50 Diesel Engine Oil

What is CI-4 20W-50 diesel engine oil used for?

It is used for heavy-duty diesel engines such as trucks, construction machinery, and mining equipment.

Is 20W-50 suitable for hot climates?

Yes, 20W-50 provides excellent high-temperature stability and is ideal for hot environments.

Can this oil be used in excavators?

Yes, it is widely used in excavators and heavy equipment.

Are you a diesel engine oil manufacturer or supplier?

Yes, we are a professional diesel engine oil manufacturer offering OEM and bulk supply services.

Looking for a Reliable Diesel Engine Oil Manufacturer?

YUANGEN Petrochemical is a professional diesel engine oil manufacturer and supplier providing CI-4 20W-50 diesel engine oil to global distributors and industrial clients.

✔ Bulk supply with stable quality
✔ OEM / Private Label services
✔ Fast international delivery
✔ Technical support

Contact us now to get quotation and product details.

Explore More Diesel Engine Oil Products

Discover our full range of diesel engine oil products, including CI-4, CF-4, and CH-4 engine oils designed for trucks, construction machinery, and industrial applications.

Get detailed product specifications and have our technical experts confirm whether this formulation is suitable for your equipment.

ACCESS PRODUCT DATA

Typical Test Data

Test Item	Result	Method
Density (20℃), kg/m³	871	ASTM D4052
Kinematic Viscosity (100℃) mm²/s	20.6	ASTM D445
Kinematic Viscosity (40℃) mm²/s	184	ASTM D445
Viscosity Index	131	ASTM D2270
Pour Point, ℃	-32	ASTM D97
Flash Point (COC), ℃	242	ASTM D92
Viscosity, Cold Crank (-15℃), mPa.s	7850	ASTM D5293
Base Number, mg KOH/g	11.5	ASTM D2896
Sulfated Ash, mass%	1.39	ASTM D874

Health, Safety & Environment

The product is unlikely to present any significant health or safety hazard when properly used in the recommended application, and good standards of personal hygiene are maintained.
Avoid contact with skin. Use impervious gloves with used oil. After skin contact, wash immediately with soap and water.
Take used oil to an authorised collection point. Do not discharge into drains, soil or water.

Storage

All packages should be stored under cover. Where outside storage is unavoidable, drums should be laid horizontally to avoid the possible ingress of water and damage to drum markings. Products should not be stored above 60°C, exposed to direct sunlight or freezing conditions.

The indicated properties are typical of those obtained with normal production tolerance and do not constitute a specification. All the information contained in this document is considered accurate as of date of printing, and no warranty or representation, expressed or implied is made as to the accuracy of the data and information in this publication. The information contained herein is subject to change without notice.

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For data security, YUANGEN does not disclose detailed product information on this website. Please briefly describe your equipment and application, and our technical team will review your request, provide accurate product specifications, and offer guidance on equipment compatibility.

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