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Valvoline FlexFill 75W-90 Gear Oil [1 QT]

  • Flexible pouch design for easy use.
  • Advanced full synthetic formula for superior performance.
  • 4X better gear wear protection than conventional oils.
  • Suitable for API GL-5 and GL-4 specifications.
  • Outstanding thermal stability for extreme conditions.
  • High and low temperature protection for durability.
  • Perfect for tight spaces and hard-to-reach areas.

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Best Alternatives and Similar Products for Valvoline FlexFill 75W-90 Gear Oil [1 QT]

The best Gear Oils includes Quicksilver Gear Lube SAE 90 [32 oz], Lucas Oil 80W-90 Gear Oil [1 Quart], Quicksilver 80W-90 Gear Lube [32 oz] and many others as mentioned below.

1

Quicksilver Gear Lube SAE 90 [32 oz]

Best Product
  • High performance SAE 90 gear lube.
  • 32 oz bottle for convenient application.
  • Protects against corrosion and excessive wear.
  • Formulated for outboard and sterndrive engines.
  • Extreme pressure additives prevent metal contact.
  • Meets Mercury Marine OEM specifications.
  • Direct replacement for Mercury part number 858064K01.
  • Price Range: $19.97
  • Color: 5 positive
  • Material: Various Materials

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    Alternatives

    2

    Lucas Oil 80W-90 Gear Oil [1 Quart]

    Best Product
  • Exceptional wear protection and lubricity agents.
  • Reduces drag for smoother performance.
  • Controls heat for optimal gear function.
  • Incorporates advanced Lucas additive technology.
  • Compatible with heavy-duty applications.
  • Available in 1 quart and 1 gallon sizes.
  • Enhances the lifespan of your gear system.
  • Price Range: $11.97
  • Color: Multi
  • Material: Blend

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    3

    Quicksilver 80W-90 Gear Lube [32 oz]

    Best Product
  • Direct replacement for Mercury Marine 858058K01.
  • Protects against wear, corrosion, and pitting.
  • Extends gear life in marine applications.
  • Additives protect gears from water intrusion.
  • Recommended for outboard motor gear cases.
  • 80W-90 viscosity for optimal performance.
  • Meets Mercury Marine OEM specifications.
  • Price Range: $16.98
  • Material: Various Materials

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    4

    Yamaha Gearcase Lube [32 OZ]

  • 32 OZ high-performance gearcase lube for Yamaha engines.
  • 80W-90 weight ensures optimal lubrication and protection.
  • High viscosity formula withstands high speed and load.
  • Unique rust inhibitors safeguard against corrosion.
  • Effective in saltwater environments for durability.
  • Flash point of 161 degrees Celsius for safety.
  • Ideal for maintaining engine efficiency and longevity.
  • Price Range: $14.68
  • Material: Lithium, Polytetrafluoroethylene (PTFE), Molybdenum Disulfide

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    5

    Valvoline 80W-90 Gear Oil (1 QT)

  • Extreme pressure additives for superior performance.
  • Prevents noise and chattering in gear systems.
  • Protects gear teeth from premature wear.
  • Exceptional temperature protection from -15F to 410F.
  • Fights rust and corrosion effectively.
  • Meets API Services GL-5 and GL-4 standards.
  • Ideal for towing and hauling applications.
  • Price Range: $12.49

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    Alternatives

    6

    STAR BRITE Hypoid 90W Gear Lube (32 OZ)

  • Optimal for outboard motors and stern drives.
  • Anti-wear additives ensure maximum protection.
  • Compatible with leading marine engine brands.
  • Meets rigorous industry performance specifications.
  • Prevents rust and corrosion in harsh environments.
  • Warranties remain intact with manufacturer compliance.
  • Easy application with included usage instructions.
  • Price Range: $14.99
  • Material: Mineral Oils

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    7

    Speedway Motors Full Synthetic Gear Oil [75W-90, 6 PK]

  • High-performance full synthetic gear oil.
  • Viscosity rating: 75W-90 for versatility.
  • Sold in a convenient 6 pack.
  • Excellent wear protection and thermal stability.
  • Reduces friction for improved power transfer.
  • Compatible with limited slip applications.
  • Meets or exceeds industry performance standards.
  • Price Range: $66.49
  • Material: Synthetic

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    8

    Mercury Marine High Performance Gear Lube

  • Genuine OEM Mercruiser sterndrive and outdrive oil.
  • Exclusive formula for extended gear life.
  • Engineered for high-speed, high-horsepower applications.
  • Extreme pressure synthetic additives prevent metal contact.
  • Maximum protection for sterndrive and outboard lower units.
  • Compatible with most Mercruiser gear housings.
  • Includes convenient hand pump for easy application.
  • Price Range: $32.99
  • Material: Metal

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    9

    Mobil 1 Synthetic Grease Tube [13.4 oz]

  • High-performance synthetic grease for automotive applications.
  • 13.4 oz tube for convenient application.
  • Excellent temperature stability for extreme conditions.
  • Provides superior protection against wear and corrosion.
  • Easy-to-use tube design for precise application.
  • Ideal for various automotive and industrial uses.
  • Made in the United States for quality assurance.
  • Price Range: $7.28
  • Material: Grease

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    10

    Red Line 75W85 GL-5 Synthetic Gear Oil

  • 75W85 viscosity, suitable for diverse applications.
  • Full synthetic formula for superior performance.
  • Compatible with clutch-type limited slip differentials.
  • Meets SAE 75W80 and 80W specifications.
  • Prevents shifting problems in manual transmissions.
  • Trusted by many automotive and racing brands.
  • Red Line: Established in 1979 for quality.
  • Price Range: $23.53
  • Color: Quart
  • Material: Synthetic

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    11

    Permatex Gear Oil RTV Gasket Maker [3 oz]

  • Withstands harsh gear oil environments.
  • Specialty silicone resists gear oil friction modifiers.
  • Seals leak paths effectively and reliably.
  • Tested to meet OEM specifications.
  • Sensor safe, non-toxic, and non-flammable.
  • Easy application for quick repairs.
  • Versatile for differentials and transfer cases.
  • Price Range: $9.69
  • Material: Silicone

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    12

    Mobil 1 75W-90 Synthetic Gear Lube [1 Quart]

  • Supreme performance synthetic automotive gear lubricant.
  • Multi-purpose SAE 75W-90 formulation for versatility.
  • Designed for modern passenger vehicles' performance needs.
  • Excellent for limited slip applications and power transfer.
  • Outstanding temperature performance in various conditions.
  • Developed through creativity and innovation in lubrication.
  • Model number 104361-UNIT for easy identification.
  • Price Range: $14.99
  • Material: Synthetic

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    13

    Lucas Oil 80W-90 Gear Oil (1 Gallon)

  • Exceptional anti-wear protection for gears.
  • Reduces friction and drag effectively.
  • Controls heat for optimal performance.
  • Advanced additive technology for durability.
  • Available in 1 quart and 1 gallon sizes.
  • Ideal for heavy-duty applications and vehicles.
  • Compatible with various gear types and systems.
  • Price Range: $32.99
  • Material: Blend

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    14

    Yukon Gear & Axle 75W90 Synthetic Gear Oil

  • High-performance 75W90 synthetic gear oil.
  • Perfect for hypoid limited slip differentials.
  • Reduces wear and extends gear life.
  • Excellent thermal stability at high temperatures.
  • Compatible with most LSD applications.
  • API GL-5, GL-6, MT-1 certified.
  • Trusted by professionals and enthusiasts alike.
  • Price Range: $23.53
  • Material: Synthetic

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    15

    Red Line MT-90 75W-90 Transmission Oil (1 Quart)

  • High performance gear protection for longer synchro life.
  • Quick shifting; eliminates notchy feel, even cold.
  • Compatible with GL-1, GL-3, and GL-4 applications.
  • Safe for brass synchros; no harmful sulfurs.
  • Recommended viscosity: 75W, 80W, SAE 40 motor oil.
  • Trusted brand since 1979; superior performance guaranteed.
  • Ideal for manual transmissions and transaxles.
  • Price Range: $23.10
  • Material: Brass

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