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Fully synthetic API CK-4 SAE 10W-40 engine oil for heavy-duty diesel engines
Fully Synthetic Diesel Engine Oil

Fully synthetic diesel engine oil API CK-4 10W-40

Super King K10 Series · B2B supply for heavy equipment fleets

API CK-4 SAE 10W-40 Fully synthetic

Fully synthetic SAE 10W-40 heavy-duty diesel engine oil, formulated to deliver low-temperature fluidity, high-temperature stability, wear protection, soot control, and compatibility with exhaust after-treatment systems. Ningbo MOS Chemical Co., Ltd. supports bulk supply, OEM production, private label cooperation, and export deliveries thanks to production resources backed by MOSINTER GROUP.

Low-Temperature Fluidity Ensures lubrication during cold start
Thermal stability Ensures lubricant stability under heat
Wear protection Helps Protect Critical Engine Components
Soot and deposit control Helps Maintain Engine Cleanliness
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Fully synthetic diesel engine oil API CK-4 10W-40

This fully synthetic heavy-duty diesel engine oil SAE 10W-40 is designed to provide low-temperature pumpability, high-temperature oxidation stability, wear protection, and soot control for commercial vehicles and equipment operating under severe conditions.

API CK-4 characteristics support appropriate diesel engines equipped with diesel particulate filters and other modern exhaust aftertreatment systems where API CK-4 and SAE 10W-40 are permitted by the engine manufacturer.

A fully synthetic formulation does not automatically entitle extended oil drain intervals. Actual service intervals must follow the engine manufacturer's recommendations and take into account operating conditions, fuel quality, equipment condition, and used oil analysis.

Claimed performance characteristics and OEM approval status must be verified based on the current product technical data sheet and supporting documentation prior to purchase.

Key performance benefits

  • Fully Synthetic Heavy-Duty Diesel Engine Oil Formulation
  • API CK-4 performance level and SAE 10W-40 viscosity grade
  • Provides low-temperature fluidity and high-temperature stability
  • Helps control soot, deposits, and sludge formation
  • Provides Wear Protection under Severe Operating Conditions
  • Designed for compatible exhaust aftertreatment systems

Application Area

Heavy-duty trucks
Commercial Buses
Construction equipment
Severe-duty fleet operation
Fully synthetic heavy-duty diesel engine lubricant

Engine Protection in Severe Operating Conditions

Provides engine cleanliness, wear control, oxidation stability, and reliable lubrication in applicable heavy-duty diesel engines.

Packaging specifications

Fully Synthetic Diesel Engine Oil API CK-4 10W-40, Bulk Package 4 L
4 L × 6 bottles
Fully synthetic diesel engine oil API CK-4 10W-40 in 18 L packaging for wholesale supply
Pail 18 L

Fully synthetic CK-4 10W-40 oil for bulk and OEM supply

Ningbo MOS Chemical Co., Ltd. supplies fully synthetic 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
  • Product options for fully synthetic API CK-4 SAE 10W-40
  • Packaging: 4 L and 18 L
  • Private labeling and packaging cooperation
  • Export Documentation and International Order Support
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Frequently Asked Questions about Fully Synthetic Diesel Engine Oil CK-4 10W-40

What is fully synthetic API CK-4 10W-40 oil used for?

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

Does Fully Synthetic Oil Automatically Extend the Drain Interval?

No. A fully synthetic formulation alone does not authorize an extended drain interval. Oil change intervals must follow the engine manufacturer's recommendations and take into account operating conditions, fuel quality, equipment condition, and used oil analysis.

Do you supply fully synthetic CK-4 10W-40 oil in bulk?

Yes. Ningbo MOS Chemical Co., Ltd. supports wholesale purchasing, bulk pricing supply, and export cooperation for lubricant distributors, fleet operators, equipment maintenance companies, and importers.

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

OEM and private label cooperation is possible depending on order volume, packaging format, label design, and target market requirements. Packaging customization and export support are available for qualified B2B projects.