Amsoil | Signature Series Synthetic 15W-40 Diesel Oil - 946ml

Amsoil Signature Series Max-Duty Synthetic 15W-40 Diesel Oil (1 Quart) is a top-tier, fully synthetic heavy-duty lubricant engineered to deliver absolute protection for diesel powerplants. Designed for both on- and off-road applications, it meets a wide range of industry and manufacturer specifications. Formulated to handle extreme thermal load and intense mechanical stress, this oil shields critical internal components, keeping work trucks, commercial fleets, and heavy equipment running with ultimate reliability.

Product Specifications:

• Brand: AMSOIL

• Product Type: Heavy-Duty Diesel Engine Oil

• Product Line: Signature Series Max-Duty Protection

• Base Type: Fully Synthetic

• Viscosity Grade: SAE 15W-40

• Volume: 946 mL

• Origin: USA

Key Features & Performance:

• 6X More Wear Protection: Delivers up to 6X more wear protection than required by the rigorous Detroit Diesel DD13 Scuffing Test, substantially extending component and valvetrain life.

• 76% Less Oil Consumption: Effectively reduces internal oil consumption by up to 76%, lowering routine operational top-off requirements and optimizing fleet efficiency.

• Extreme Thermal Stability: Outstanding resistance to oxidation and thermal breakdown maintains precise viscosity control, protecting turbocharged assemblies from extreme heat deposits.

• Superior Soot & Deposit Control: Formulated with advanced high-tier detergents to prevent soot agglomeration and sludge buildup, ensuring immaculate engine cleanliness.

Specifications & Performance Approvals:

This premium synthetic diesel formulation complies with the absolute highest international service specifications and global OEM standards:

• Industry Standards:

  • API Service Classifications: API CK-4 / SN / CJ-4 / CI-4+ / CI-4 / CF

  • European & Japanese Standards: ACEA E9, E7; JASO DH-2

• Manufacturer Approvals:

  • Cummins: Cummins CES20086

  • Detroit Diesel: Detroit Diesel 93K222

  • Mack: Mack EOS-4.5

  • Volvo: Volvo VDS-4.5

  • Ford: Ford WSS-M2C171-F1

Usage Instructions:

• Park the vehicle on a flat surface, turn off the engine, and allow it to rest for a short duration so the lubricant drains back completely into the oil pan for a proper check.

• Remove the filler cap and pour the fully synthetic formula carefully, using the ergonomic 1-Quart bottle for accurate level adjustments.

• To fully utilize the extended drain capabilities and absolute anti-wear advantages of the Signature Series chemistry, ensure a complete flush of spent oil and mount a brand-new original filter during service.

Note: This heavy-duty formula is highly optimized for maximum-duty protection across modern low-emission and classic diesel powerplants. Always check your vehicle's owner's manual to verify that the SAE 15W-40 grade and performance credentials match your specifications before refilling.

 Upgrade your diesel engine's defense and cut oil consumption up to 76% with Amsoil Max-Duty technology! Buy Amsoil Signature Series 15W-40 1-Quart today from CarBoost.