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80W140 GL-5 Gear Oil

An old-school viscosity that still out-protects the competition.

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80W140 GL-5 Gear Oil

  • Recommended for API GL-5, GL-6, MT-1, MIL-L-2105E and SAE J2360
  • Contains additional friction modifiers for suitability with clutch-type limited slip differentials - for most LSDs, no additional friction modifiers are required
  • This product is not designed for use in manual transmission or transaxles with synchronizers, as its slipperiness may lead to shifting problems
  • Popular in stock car racing differentials and transmissions
$18.49
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These products contain the extreme pressure additives necessary for ultimate protection road cars and racing vehicles, as well as friction modifiers for proper limited-slip operation

  • Fully-synthetic formulas created from polyol ester base stocks, offer excellent lubrication under extreme conditions
  • High viscosity-index (VI) to provide relatively constant viscosity and film thickness with varying temperature change
  • Ester base stocks and friction modifiers provide additional slipperiness to lower operating temperatures by reducing the sliding friction in hypoid gears
  • Superior shear stability and reduced oxidation compared to other synthetics and conventional gear oils
  • Exceed API GL-5 specifications
  • Engineered to provide the highest degree of protection and improvement of differential efficiency for better mileage, longer drain intervals, and less wear

Typical Properties

API Service Class GL 5+
SAE Viscosity Grade (Gear Oil) 80W140
Vis @ 100°C, cSt 26
Vis @ 40°C, cSt 227
Viscosity Index 146
Pour Point, °C -40
Pour Point, °F -40
Brookfield Viscosity, Poise 500 @-26°C

Available Sizes

Quart 58104
5 Gallon* 58106
16 Gallon* 58107
55 Gallon* 58108

*Only available from our dealers

Suitable replacement for:

API GL-5 & MT-1
MIL-L-2105E
SAE J2360

Popular in Racing Differentials and Transmissions