Synthetic Blend Full Engine Oil

Duragard® Diamond Plate® SAE 75W-90 100% Synthetic Gear Lube

Product Code: DUR75/90
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 31.24
Specific Gravity @60°F (15.6°C) ASTM D4052 0.8695
Viscosity @ 40°C cSt ASTM D445 109.3
Viscosity @ 100°C cSt ASTM D445 16.15
Viscosity Index ASTM D2270 159
Pour Point °C (°F) ASTM D5950 -51ºC (-60ºF)
Flash Point °F ASTM D92 435
Flash Point °C ASTM D92 224
Color ASTM D1500 1
Brookfield Viscosity at -40°C, cP ASTM D2983 101,000
Typical test data average values only, minor variations which do not affect product performance are to be expected during normal manufacturing.

Duragard® Diamond Plate® SAE 75W-90 100% Synthetic Gear Lube is specially formulated with only the finest quality paraffinic base oils, including a premium advanced additive system which includes an extreme pressure, anti-wear and anti-friction additives, oxidation and corrosion preventatives, and anti-foam agents to deliver unsurpassed protection and performance.

Duragard® Diamond Plate® SAE 75W-90 100% Synthetic Gear Lube is specially formulated for multipurpose, extreme pressure applications including conventional differentials, gear boxes, limited slip rear axles, manual transmissions, hypoid, spiral bevel, and worm gear axles. It is recommended for passenger car, bus, farm equipment, off-road construction equipment, highway truck but can also be used in manual trans­missions or the differential (hypoid) gear oil specifications from all domestic and foreign manufacturers, and in axles where an API GL-5 or GL-4 lubricant is recommended.


  • * Potential energy savings: The low friction properties of Synthetic Gear Lube SAE 75W-90 make significant fuel and energy conservation.
  • * Low temperature protection: Provides instant lubrication to components during start- up in thermally stressed arctic type conditions, preventing the scoring caused by lack of initial lubrication. In addition, the superior lubricity of this gear lubricant improves component life and reduces repairs.
  • * High temperature protection: Provides superior film strength and protection in thermally stressed, high heat conditions, compared to conventional gear oils, preventing the ridging, rippling and spalling caused by surface distress in heavily loaded gear sets
  • * Multi-purpose: to satisfy the lubricant requirements of a wide variety of gears.
  • * High capacity: Extreme pressure lubricant additives for hypoid and heavily loaded gears.
  • * Reduced operating temperatures: Lower frictional losses and lower hydrodynamic drag result in reduced operating temperatures compared to conventional gear oils.
  • * Excellent oxidation stability: The 100% synthetic base oil used in the manufacture of this product assures outstanding stability and service life.
  • * Provides excellent moisture and corrosion protection.
  • * Minimize lubricant inventory: Compatible with other mineral and synthetic gear oils and can be used in axles and certain transmissions minimizing the number of products required in inventory.
  • * Extended drain capability: Meets the requirements typical of axle manufacturers for extended service oil drain intervals.

Duragard® Diamond Plate® SAE 75W-90 100% Synthetic Gear Lubricant meets or exceeds the requirements of API service MT-1/GL-5 EP gear oil service classification and for use in applications requiring the MIL- 2105E/F specification.

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

API GL-5, GL-4 MT-1
AGMA 9005-E02, 250.03, 250.04, 251.02, No. 4 SAE J2360
AIST/US Steel 224 MIL-2105E/F
ArvinMeritor (Rockwell International) 076-E GM9986115
MACK GO-J, GO-H, GO-G Limited Slip

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