Home > Product Catalog > Automotive lubricants > Engine Oil > Diesel engine oil > API CK-4 10W-40 heavy-duty diesel engine oil
API CK-4 SAE 10W-40 heavy-duty diesel engine oil
Engine Oil for Heavy-Duty Diesel Engines

API CK-4 10W-40 heavy-duty diesel engine oil

Bulk Supply of Lubricants for Trucks, Commercial Fleets, and Heavy Equipment

API CK-4 SAE 10W-40

Heavy-duty diesel engine oil SAE 10W-40, formulated with synthetic components and an additive package designed to provide wear protection, oxidation control, engine cleanliness, and extended durability of the exhaust aftertreatment system. Ningbo MOS Chemical Co., Ltd. supports bulk supply, OEM production, private label cooperation, and export deliveries through manufacturing resources backed by MOSINTER GROUP.

Wear protection Helps Protect Critical Engine Components
Soot and deposit control Helps Maintain Engine Cleanliness
Oxidation Stability Maintains Lubricant Performance Under Heat
Support for After-Treatment Systems Formulated for Applications Requiring API CK-4
Send Inquiry

API CK-4 10W-40 Diesel Engine Oil Description

This API CK-4 SAE 10W-40 heavy-duty diesel engine oil is formulated to provide wear protection, oxidation stability, soot control, and engine cleanliness in demanding commercial vehicles and equipment.

API CK-4 performance supports applications equipped with diesel particulate filters and other advanced exhaust aftertreatment systems where this service category and SAE 10W-40 viscosity are permitted by the engine manufacturer.

Actual oil change intervals must follow the engine manufacturer's recommendations and take into account fuel sulfur content, operating conditions, equipment condition, and used oil analysis results.

Stated performance characteristics should be verified against the current product technical data sheet. Information on OEM approvals is provided upon request where available.

Key performance benefits

  • Designed to deliver the performance of heavy-duty diesel engine oil API CK-4
  • SAE 10W-40 Viscosity Grade
  • Helps control soot, deposits, and sludge formation
  • Provides wear protection and oxidation stability
  • Designed for compatibility with exhaust aftertreatment systems
  • Suitable for applicable trucks, fleets, and heavy-duty equipment

Application Area

Heavy-duty trucks
Commercial Buses
Construction equipment
Commercial diesel engines
Heavy-duty diesel engine lubricant for trucks and equipment

Engine Protection in Severe Operating Conditions

Provides engine cleanliness, wear control, oxidative stability, and reliable lubrication in suitable commercial diesel engines.

Packaging Specification

API CK-4 10W-40 Diesel Engine Oil 4L Bulk Package
4 L × 6 bottles
API CK-4 10W-40 diesel engine oil, 18L bulk packaging
Pail 18 L

API CK-4 10W-40 diesel oil wholesale and OEM supply

Ningbo MOS Chemical Co., Ltd. supplies heavy-duty diesel engine oil API CK-4 SAE 10W-40 to lubricant distributors, commercial fleet operators, truck service companies, equipment maintenance enterprises, and international 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
  • Supply of API CK-4 SAE 10W-40 diesel engine oil
  • Packaging: 4 L and 18 L
  • Custom Label and Packaging Collaboration
  • Export Documentation and International Order Support
Send Inquiry

API CK-4 10W-40 Diesel Engine Oil Frequently Asked Questions

Which applications is API CK-4 10W-40 diesel engine oil suitable for?

Intended for suitable heavy-duty diesel engines used in commercial trucks, buses, and construction equipment where the engine manufacturer permits API CK-4 performance and SAE 10W-40 viscosity.

Does API CK-4 help protect diesel engine aftertreatment systems?

API CK-4 oils are designed to support the durability of emission control systems in applicable applications using diesel particulate filters and other modern aftertreatment systems. Always follow the engine manufacturer’s lubrication recommendations.

Do you supply diesel engine oil API CK-4 10W-40 in bulk?

Yes. Ningbo MOS Chemical Co., Ltd. supports bulk procurement, bulk supply, and export cooperation for lubricant distributors, fleet operators, equipment 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.