Mobil Delvac™ 1600 Monogrades engine oils

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Inland and Coastal
Deep Sea Shipping Industry

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Technical resources

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Features and Benefits

Features Advantages and Potential Benefits
Excellent protection against oil thickening, high temperature deposits, sludge build-up, oil degradation and corrosion

Prolonged engine life
Less wear
Excellent protection against ring sticking

Extended TBN reserve

Long-term deposit/wear control
Controls formation of acids when using higher sulfur fuels


Mobil Delvac 1630, 1640, and 1650 are high performance monograde diesel engine oils formulated from advanced technology base oils and a balanced additive system. They are recommended by ExxonMobil for use in intercooled, turbo-charged engines operating under severe on and off-highway conditions as well as a wide range of applications where a monograde lubricant is recommended.

Specifications and Approvals

Mobil Delvac 1600 Monogrades meet or exceed the requirements of the following industry and builder specifications: Mobil Delvac 1630 Mobil Delvac 1640 Mobil Delvac 1650

Mobil Delvac 1600 Monogrades have the following builder approvals: Mobil Delvac 1630 Mobil Delvac 1640 Mobil Delvac 1650
MTU Oil Category 2 X X


GE 250MDA/B (V or L)


Mobil Delvac 1600 Monogrades are recommended by ExxonMobil for use in applications requiring: Mobil Delvac 1630 Mobil Delvac 1640 Mobil Delvac 1650

Allison C-4 X

MAN 270 X X

Typical Properties

Mobil Delvac 1600 Monogrades Mobil Delvac 1630 Mobil Delvac 1640 Mobil Delvac 1650
SAE Grade 30 40 50
Density @ 15ºC kg/l, ASTM D 4052 0.889 0.892 0.896
Viscosity, ASTM D 445

cSt @ 40ºC 90 132 202
cSt @ 100ºC 11.5 14.7 19.5
Viscosity Index, ASTM D 2270 117 112 110
Sulfated Ash, wt%, ASTM D 874 1.4 1.4 1.4
Total Base #, mg KOH/g, ASTM D 2896 12 12 12
Pour Point, ºC, ASTM D 97 -30 -21 -18
Flash Point, ºC, ASTM D 92 230 239 290

Recommended by ExxonMobil for use in:

  • Naturally aspirated and turbo-charged diesel powered equipment
  • On-highway light and heavy-duty trucking
  • Off-highway industries including: construction, mining, quarrying, and agriculture
  • Tugboat viewed from a distance

    Mobil Delvac™ 1640 provided exceptional protection for General Electric engines running on distillate fuel

    Mobil Delvac™ 1640 helped provide exceptional maintenance and low wear rates for General Electric main engines running on distillate fuel.

  • Workers examining ship engine room

    Providing you with reliable, cost-effective solutions

    Our services help reduce feed rates and consumption, helping increase the reliability of shipboard equipment and minimise maintenance costs.