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Mobil Delvac 1™ LE

Mobil Delvac 1™ LE

Full synthetic heavy-duty diesel engine oil

Mobil Delvac 1 LE is a full synthetic, heavy-duty diesel engine oil that combines advanced engine protection for modern low emissions vehicles with enhanced fuel economy potential* and other sustainability-related benefits such as:

  • Engine durability
  • Emissions system protection
  • Extended drain capability

Mobil Delvac 1 LE uses state-of-the-art technology to deliver exceptional performance and enhanced emissions systems protection in a variety of severe conditions.

It is well suited for an extensive array of diesel-powered commercial vehicles for both on- and off-highway use in industries such as:

  • Transportation
  • Mining
  • Construction
  • Agriculture

*Relative to conventional 15W-40 engine oil. Actual fuel economy improvement is dependent on vehicle/equipment type, outside temperature, driving conditions and your current fluid viscosity.

Features and benefits

  • Advanced wear protection helps to provide engine durability
  • Enhanced fuel economy potential*
  • Extended drain interval capability to allow fewer oil changes and less oil disposal
  • Provides emission system durability and performance
  • Easier starting in cold weather

*Relative to conventional 15W-40 engine oil. Actual fuel economy improvement is dependent on vehicle/equipment type, outside temperature, driving conditions and your current fluid viscosity.

Applications** of Mobil Delvac 1 LE include:

  • Heavy-duty diesel engines including Euro V/VI and US EPA 2007/2010 modern low emissions vehicles, utilizing technologies such as Diesel Particulate Filter (DPF), Selective Catalytic Reduction (SCR), Continuously Regenerating Traps (CRT), Diesel Oxidation Catalysts (DOC) and Exhaust Gas Recirculation (EGR)
  • Heavy-duty diesel engines using low sulfur diesel fuels and many biodiesel fuel formulations
  • Naturally aspirated and turbo-charged diesel-powered equipment 
  • On-highway short-haul and long-haul trucks and buses 
  • Off-highway mining, construction and agricultural equipment

**Please refer to the owner’s handbook for OEM application requirements and oil drain intervals for your vehicle or equipment.

  • 5W-30

    Specifications and approvals

    Mobil Delvac 1 LE 5W-30 meets or exceeds the requirements of:

    • ACEA E9, E7, E6
    • API CJ-4, CI-4 PLUS, CI-4, SN
    • JASO DH-2
    • Caterpillar ECF-3
    • Cummins CES 20081
    • DAF Extended Drain
    • Ford WSS-M2C171-E

    Mobil Delvac 1 LE 5W-30 has the following builder approvals:

    • MB-Approval 235.28, 228.51, 228.31
    • MAN M 3677, 3477, 3271-1
    • Volvo VDS-4, VDS-3
    • Deutz DQC IV-10 LA
    • Detroit Fluids Specification 93K218
    • Mack EO-O Premium Plus
    • MTU Oil Category 3.1
    • Renault Truck RLD-3, RLD-2
    • Voith Retarder Oil Class B
    • Scania Low Ash
    • Avtodisel YaMZ-6-12

    Mobil Delvac 1 LE 5W-30 is recommended by ExxonMobil for use in applications requiring:

    • Renault Truck RGD
    • Renault Truck RXD

    Technical details

    SAE Grade 5W-30
    Viscosity, ASTM D 445
    cSt @ 40ºC 69
    cSt @ 100ºC 11.8
    Viscosity Index, ASTM D 2270 168
    Sulfated Ash, wt%, ASTM D 874 1.0
    Total Base #, mg KOH/g, ASTM D 2896         10
    Pour Point, ºC, ASTM D 97 -51
    Flash Point, ºC, ASTM D 92 234
    Density @ 15ºC, kg/l, ASTM D 4052 0.855

    View product data sheet for Mobil Delvac 1™ LE 5W-30 engine oil

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More Mobil™ resources

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Mobil Delvac™ FAQs

Find answers to your product questions and more in our FAQs.

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Success with full synthetic oil

Pride Transport saved nearly $700,000 in annual costs by making the switch to Mobil Delvac 1™ diesel engine oil.

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Use our locator tool to find out where to buy Mobil Delvac™ products in your area.

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