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API CJ-4 SAE 10W-30 diesel engine oil for specific Cummins applications
Engine Oil for Heavy-Duty Diesel Engines

API CJ-4 10W-30 Diesel Engine Oil for select Cummins applications

Supply of diesel oil for commercial fleets and engine maintenance enterprises

API CJ-4 CI-4 PLUS SAE 10W-30

SAE 10W-30 heavy-duty diesel engine oil designed for select Cummins engines and other diesel engines requiring API CJ-4 or CI-4 PLUS performance. Ningbo MOS Chemical Co., Ltd. supports bulk supply, OEM production, private label collaboration, and export deliveries through manufacturing resources backed by MOSINTER GROUP.

Wear protection Helps Protect Critical Engine Components
Engine Cleanliness Helps control deposits and sludge
Oxidation Control Ensures lubricant stability at operating temperature
Acid neutralization Helps Neutralize Acidic Combustion Byproducts
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API CJ-4 10W-30 Diesel Engine Oil Description

This heavy-duty diesel engine oil SAE 10W-30 is formulated for specific engines requiring API CJ-4 or CI-4 PLUS performance. Its detergent, dispersant, antioxidant, and anti-wear properties contribute to engine cleanliness and stable lubrication in commercial vehicle operation.

For Cummins applications, customers and service technicians should check the required API category, Cummins engineering standard, viscosity grade, and oil change interval in the specific engine manual. The Cummins name alone is insufficient to determine lubricant compatibility.

Key performance benefits

  • API CJ-4 performance level diesel engine oil for heavy-duty diesel engines
  • Additional performance designation CI-4 PLUS
  • SAE 10W-30 Viscosity Grade
  • Helps control deposits, sludge, and soot-related thickening
  • Provides oxidation stability and acid neutralization
  • Suitable for certain diesel engines requiring these specifications

Engine Application Verification

Use this product only when the engine or vehicle manufacturer permits operation with API CJ-4 or CI-4 PLUS performance and SAE 10W-30 viscosity. Some newer Cummins engines may require a later API category and compliance with a specific Cummins Engineering Standard. Always consult the engine operator's manual before use.

Application Area

Selected Cummins Diesel Engines
Commercial Trucks
Commercial Fleets
Applications in diesel engines
Heavy-Duty Diesel Engine Lubricant for Commercial Vehicles

Engine Protection in Severe Operating Conditions

Delivers engine cleanliness, wear control, acid neutralization, and stable lubrication in suitable commercial diesel engines.

Packaging specifications

API CJ-4 10W-30 Diesel Engine Oil 4L Bulk Package
4 L × 6 bottles
API CJ-4 10W-30 Diesel Engine Oil, 18L bulk packaging
Pail 18 L

API CJ-4 10W-30 diesel oil wholesale and OEM supply

Ningbo MOS Chemical Co., Ltd. supplies heavy-duty diesel engine oil SAE 10W-30 to lubricant distributors, commercial fleet operators, engine service companies, and international automotive aftermarket importers.

Leveraging production resources supported by MOSINTER GROUP, we provide factory-coordinated manufacturing, wholesale procurement, OEM lubricant production, private label packaging, and export order support for international B2B buyers.

  • Bulk Supply for Distributors and Importers
  • Private Label and OEM Lubricant Manufacturing
  • API CJ-4 and CI-4 PLUS Performance Options
  • SAE 10W-30 supply of heavy-duty diesel engine oil
  • Packaging: 4 L and 18 L
  • Support for custom labels and export documentation
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Cummins is a trademark of Cummins Inc. References to Cummins engine models are provided solely to describe potential applications and do not imply affiliation, sponsorship, or endorsement. The suitability of the lubricant must be verified in accordance with the applicable engine operating manual and required specifications.

API CJ-4 10W-30 Diesel Engine Oil Frequently Asked Questions

Is this oil suitable for all Cummins X-Series engines?

No single lubricant specification is suitable for all Cummins engines. This product should be used only in select engines where API CJ-4 or CI-4 PLUS performance characteristics and SAE 10W-30 viscosity are permitted. Always consult the specific engine operation manual and Cummins engineering standard before use.

What Is the Difference Between API CJ-4 and CI-4 PLUS?

API CJ-4 is a service category for heavy-duty diesel engines. CI-4 PLUS is an additional performance designation associated with corresponding CI-4 oils. The product specification must not be recorded as API CJ-4 PLUS.

Do you supply diesel engine oil SAE 10W-30 in bulk?

Yes. Ningbo MOS Chemical Co., Ltd. supports bulk procurement, bulk supply, and export cooperation for lubricant distributors, fleet operators, engine maintenance companies, and international importers.

Is the diesel engine oil available under OEM or private label?

OEM and private label cooperation can be arranged according to order volume, packaging format, label design, and destination market requirements. Packaging customization and export order support are available for qualified B2B projects.