Synthetic Blend Full Engine Oil

Duragard® SAE 40WT Heavy Duty Single Grade Engine & Transmission Oil

Product Code: DUR40XX
AVAILABLE IN: 2.5 gal JUG, 5 gal PAIL, 16 gal KEG, 30 gal DRUM, 55gal DRUM, and BULK (in selected areas)




Color ASTM D1500 2.0
Flash Point °C ASTM D92 210
Flash Point °F ASTM D92 410
Gravity, °API ASTM D287 29.61
Pour Point °C (°F) ASTM D5950 -27ºC (-17ºF)
Specific Gravity @60°F (15.6°C) ASTM D4052 0.8783
Viscosity @ 40°C cSt ASTM D445 124.5
Viscosity @ 100°C cSt ASTM D445 13.29
Viscosity Index ASTM D2270 101
Zinc, wt. % ASTM D5185 0.086
Typical test data average values only, minor variations which do not affect product performance are to be expected during normal manufacturing.

Duragard® SAE 40WT Single Grade Heavy Duty Engine & Transmission Oil is specially formulated with a select High Viscosity Index (HVI) Group-II Hydro-cracked base oils combined with potent detergent dispersants, anti-wear additives, anti-oxidants, defoamers, and pour point depressant compounds that provide superior low temperature fluidity and extraordinary high temperature film strength to prevent metal-to-metal contact.

Duragard® SAE 40WT Single Grade Heavy Duty Engine & Transmission Oil meets the performance requirements of typical of Allison C-4, Caterpillar TO-2 fluids, and the non-synthetic requirements typical of CD/GL-1 for Eaton / Fuller Road Ranger & Spicer / Dana transmissions. Meets the requirements of API CF and CF-2.


  • * Meets API CF and CF-2.
  • * Reduces deposits of sludge, varnish and carbon on engine parts.
  • * Superior low temperature fluidity..
  • * Provides excellent high film strength properties under high temperatures.
  • * Outstanding oil performance under harsher conditions.
  • * Suitable for heavy equipment used for construction, mining or quarry operations, and farming.

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