Synthetic Blend Full Engine Oil

Duragard® Premium SAE 80W-90 Gear Lubricant

Product Code: DUR80/90
AVAILABLE IN: 2.5 gal JUG, 5 gal PAIL, 16 gal KEG, 30 gal DRUM, 55gal DRUM, and BULK (in selected areas)

2.5 gal Jug

5 gal Pail

16 gal KEG, 30gal DRUM, 55gal DRUM, and BULK (in selected areas)




Gravity, ºAPI ASTM D287 27.76
Specific Gravity @60°F (15.6°C) ASTM D4052 0.8885
Viscosity @ 40°C cSt ASTM D445 130.9
Viscosity @ 100°C cSt ASTM D445 13.98
Viscosity Index ASTM D2270 104
Flash Point °C ASTM D92 224
Flash Point °F ASTM D92 435
Pour Point °C (°F) ASTM D5950 -33ºC (-27ºF)
Color ASTM D1500 7
Brookfield Viscosity at -26°C, cP ASTM D2983 92,000
Typical test data average values only, minor variations which do not affect product performance are to be expected during normal manufacturing.

Duragard® Diamond Plate® Premium SAE 80W-90 Gear Lubricant is specially formulated with only the finest quality, hydrotreated, High Viscosity Index (HVI), paraffinic base oils and the most advanced and rigorously-tested additive system to deliver unsurpassed protection and performance for equipment and automotive applications. This robust formulation meets or exceeds the recommendation for use in heavy duty manual transmissions, drive axles and final drives requiring API GL-5 & MT-1 performance.

Duragard® Diamond Plate® Premium SAE 80W-90 Gear Lubricant is recommended for use in light- and heavy-duty, automotive, commercial or industrial applications requiring SAE 80W-90 EP gear lube. It is applicable for multi-purpose, extreme pressure applications, including conventional differentials, gear boxes, limited slip rear axles, manual transmissions and hypoid gears. This product can also be used in axles where an API GL-5 & MT-1 lubricant is recommended. It is not intended for automatic, manual or auto-stick semi-automatic transmissions for which engine oil or automatic fluids are required.


  • * Multipurpose advanced heavy duty lubricant.
  • * Excellent protection in harsh temeratures..
  • * Outstanding anti-friction and anti-wear properties.
  • * Superior demulsibility to ease water removal.
  • * Helps prevent foaming, rust, and corrosion.
  • * Smooths and quiets operation.
  • * Promotes extended drain interval and reduced operating costs.

This product meets, or exceeds the requirements similar to the following manufacturers and global specifications:

API GL-5 Meets Requirements
Mack GO-J, GO-H, GO-G Meets Requirements
MT-1 Meets Requirements
SAE J2360, MIL-2105E/F Meets Requirements
Limited Slip Top Off/Service Fill Suitable for Use
**Consult the individual manufacturer specification requirements for recommendations and use.

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Proposition 65
WARNING: Products may expose you to chemicals which are known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to
For specific product risks check the manufacturer’s SDS Section 15: Regulatory information.