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AMSOIL Signature Series Max-Duty 5W-30 Synthetic Diesel Oil bottle
Synthetic Diesel Oil 5W-30

AMSOIL Signature Series Max-Duty 5W-30 Synthetic Diesel Oil

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Estimated delivery by Mon, Feb 23 or sooner

Maximum-Duty Protection for 5W-30 Diesel Applications

AMSOIL Signature Series Max-Duty 5W-30 delivers 6X more wear protection than required by the Detroit Diesel DD13 Scuffing Test for Specification DFS 93K222. Purpose-built for modern turbodiesel pickups and heavy-duty diesel engines requiring 5W-30 viscosity.

Key Benefits

  • 6X more wear protection than required by DD13 Scuffing Test
  • 76% less oil consumption than API CK-4 standard
  • 60% better turbo cleanliness protection
  • 2X better rust protection
  • Extended drain intervals up to 3X OEM recommendation
  • Excellent cold-weather performance at -43°C (-45°F)

Technical Specifications

PropertyValue
Kinematic Viscosity @ 100°C, cSt12.0
Kinematic Viscosity @ 40°C, cSt72.3
Viscosity Index162
HTHS Viscosity, cP3.5
Pour Point-43°C (-45°F)
NOACK Volatility, % weight loss8.6%
Total Base Number (TBN)10.1
Sulfated Ash Content0.91%

Industry Certifications & OEM Approvals

API

  • CK-4/SN

Cummins

  • CES 20086, CES 20081

Detroit Diesel

  • DFS 93K222, 93K218

Volvo

  • VDS-4.5

Mack

  • EOS-4.5

Ford

  • WSS-M2C171-F1

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Frequently Asked Questions

Which diesel trucks use 5W-30 oil?

5W-30 diesel oil is used in many modern turbodiesel pickups including select Ford Power Stroke, GM Duramax, and Ram Cummins applications. Always check your owner's manual to confirm the correct viscosity.

How far can I extend drain intervals with Max-Duty 5W-30?

Max-Duty allows extended drain intervals up to 3X OEM recommendation for heavy-duty applications (not to exceed 60,000 miles/600 hours/1 year) and 2X for turbodiesel pickups (not to exceed 25,000 miles/1 year). Use oil analysis to optimize intervals.

Independent AMSOIL Dealer #1858536. Product information sourced from AMSOIL. Visit AMSOIL.com for the most current product details and availability.