USA Synthetic Oils
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Red Line Gear Oils

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Red Line Synthetic Gear Oils 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

  • ***FREE SHIPPING ON CASES OF 12 OR MORE***


    ***FREE SHIPPING ON CASES OF 12 OR MORE***

    Categories
    Products
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    Red Line 75W-90 Gear Oil - 6 Quarts
    Our most popular gear oil, this is the preferred product in nearly all car and light truck differentials, both conventional and limited-slip. 75W90 is preferred for most racing applications. It contains friction modifier which is recommended for limited-slip units. 75W90 Gear Oil can be used in many transmissions and transaxles; however, other Red Line lubricants have better frictional properties for rapid synchronization. Exceeds API GL-5.

    Datasheet
    $83.70
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    Red Line 75W-90 Gear Oil - Case of 12 Quarts
    Our most popular gear oil, this is the preferred product in nearly all car and light truck differentials, both conventional and limited-slip. 75W90 is preferred for most racing applications. It contains friction modifier which is recommended for limited-slip units. 75W90 Gear Oil can be used in many transmissions and transaxles; however, other Red Line lubricants have better frictional properties for rapid synchronization. Exceeds API GL-5.

    Datasheet
    $167.40
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    Red Line 75W-140 Gear Oil - 6 Quarts
    Our 75W140 gear oil is a GL-5 rated product recommended for street-driven road car differentials where that viscosity is specified, providing excellent performance in both conventional and limited slip units. Popular in late-model Ford truck rear differentials as well as many other common models.

    Datasheet
    $95.70
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    Red Line 75W-140 Gear Oil - Case of 12 Quarts
    $191.40
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    Red Line 75W-140NS Gear Oil - 6 Quarts
    Heavier gear oil that works well over a wide range of loads and temperatures, This GL-5-type geal oil doesn't contain the friction modifiers for limited-slip hypoid differentials. This makes the transmission synchronizers come to equal speeds more quickly, allowing faster shifting and much easier low-temperature shifting. Can also be used in racing limited-slip differentials where weak spring design causes too much wheel spin.

    Datasheet
    $95.70
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    Red Line 75W-140NS Gear Oil - Case of 12 Quarts
    Heavier gear oil that works well over a wide range of loads and temperatures, This GL-5-type geal oil doesn't contain the friction modifiers for limited-slip hypoid differentials. This makes the transmission synchronizers come to equal speeds more quickly, allowing faster shifting and much easier low-temperature shifting. Can also be used in racing limited-slip differentials where weak spring design causes too much wheel spin.

    Datasheet
    $191.40
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    Red Line 80W-140 Gear Oil - 6 Quarts
    Generally used in commercial trucks which will climb long, steep grades and some racing applications where power is not critical. Generally 0.5% less efficient than 75W90. Can also be used in differentials and transmissions where excessive noise is a problem and limited-slip differentials which vibrate excessively when turning a corner. Exceeds API GL-5.

    Datasheet
    $89.70
    6rlg75140.jpg
    Red Line 80W-140 Gear Oil - Case of 12 Quarts
    Our most popular gear oil, this is the preferred product in nearly all car and light truck differentials, both conventional and limited-slip. 75W90 is preferred for most racing applications. It contains friction modifier which is recommended for limited-slip units. 75W90 Gear Oil can be used in many transmissions and transaxles; however, other Red Line lubricants have better frictional properties for rapid synchronization. Exceeds API GL-5.

    Datasheet
    $179.40
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    Red Line V-Twin Primary Case Oil - 6 Quarts
    V-twin Primary Case Oil is designed specifically for �84-to-present V-Twin American motorcycle engines, including aftermarket engines of similar designs. Similar to our MTL, this product is for use in the primary chaincase with wet-diaphragm spring clutches.

    Datasheet
    $86.94
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    Red Line V-Twin Primary Case Oil - Case of 12 Quarts
    V-twin Primary Case Oil is designed specifically for �84-to-present V-Twin American motorcycle engines, including aftermarket engines of similar designs. Similar to our MTL, this product is for use in the primary chaincase with wet-diaphragm spring clutches.

    Datasheet
    $173.88