RAMCO Lubricants
Products/Diesel Engine Oils
RAMCO 15W-40 API CK-4/SN
Diesel Engine Oils

RAMCO 15W-40 API CK-4/SN

Viscosity Grade

15W-40

Specification

API CK-4/SN

Category

Synthetic Technology

The workhorse of modern heavy-duty fleets. Advanced soot handling, high shear stability and strong TBN reserve for long haul, construction and generator duty.

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Performance Highlights

Wear Protection

Additive film guards critical metal surfaces under load.

Oxidation Resistance

Resists thermal breakdown across long duty cycles.

Deposit Control

Keeps internal components clean and free of sludge.

Thermal Stability

Maintains film strength in high-temperature operation.

Smooth Performance

Controlled friction for responsive, quiet running.

Technical Specifications

PropertyMethodTypical Value
Density @29.5°C, gm/ccASTM D-12980.876
Viscosity @100°C, cStASTM D-44515.1
Viscosity @40°C, cStASTM D-445116.0
Viscosity IndexASTM D-2270138
Pour Point, °CASTM D-97-30
Flash Point, °CASTM D-92238
TBN, mgKOH/gmASTM D-289610.4

Always refer to the vehicle or equipment manufacturer's recommended specifications before selecting a lubricant.

Meets or Exceeds

  • API CK-4
  • API SN
  • ACEA E9

Available Packaging

250ML500ML1L3L4L5L20L200L Drum1000L IBC25,000L Flexitank

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