The Best Gear Oils of 2023

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We ranked and reviewed the top 10 Best Gear Oils in 2023. Read more How we ranked

Emily Sloyan
  Jun 10, 2023 3:11 PM
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1
Triax HD Gear Premium LS 80W-90, GL-5 Limited Slip Ready, Manual Transmissions, Hypoid Gear Systems, Differentials, NATO Military Approved, Widest OEM Specification Range (1 Gallon)
Triax HD Gear Premium LS 80W-90, GL-5 Limited Slip Ready, Manual Transmissions, Hypoid Gear Systems, Differentials, NATO Military Approved, Widest OEM Specification Range (1 Gallon)
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  • SCORE
    8.6
    KT Score

    KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.

  • Brand
    Triax
Features

WIDEST SPEC RANGE ON THE MARKET: widely compatible with a very large number of hypoid gear systems, differentials, transmissions and axle assemblies.

SEVERE SERVICE MAX: Exceptional shear stability and oxidation resistance. Polyphosphate EP proprietary additive system offers substantial improvement in performance over previous generation, low cost, gear oils

BUILT IN LIMTED SLIP ADDITIVE - Does not require "additional" LS additive. Its built into the product, optimized for all limited slip differentials, including those with built in wet brakes.

OUTSTANDING SCUFFING PROTECTION - Superb gear and syncron protection, facilitating extremely long transmission life. Exceeds Load Stage 13 extreme pressure requirements beyond 120,000 lbs / sqi.

SHEAR STABLE - Excellent thermal stability and high load capacity without viscosity breakdown, facilitates excellent film strength under high loads, high temp and high shear conditions.

PROS
    CONS
      2
      CASTROL GEAR OIL 75W90 SYNTRAX LONGLIFE - 558.32.24 - CASTROL - Content: 1,0 l -
      CASTROL GEAR OIL 75W90 SYNTRAX LONGLIFE - 558.32.24 - CASTROL - Content: 1,0 l -
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      • SCORE
        9.6
        KT Score

        KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.

      • Brand
        Castrol
      Features

      Final transmission oil Castrol Syntrax Long Life 75W-90 Fully synthetic Achsgetriebeschmierstoff for cars, vans and lorries and tractors. The power reserves exceed the API classification GL-5 and allow a significant extension of the existing oil change intervals (equivalent with manufacturer's instructions). The oil can be used in all rear axles and differentials without blades lock when a lubricant is required with GL-5 SAE 75W-90. Main advantages: Extremely high pressure resistance Pronounce

      PROS
        CONS
          3
          Honda 08208-0080 Pro Shaft Drive Oil
          Honda 08208-0080 Pro Shaft Drive Oil
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          • SCORE
            8.5
            KT Score

            KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.

          • Brand
            Honda
          Features

          Exceeds API service classifications GL-5 and GL-4

          High shear strength resists viscosity breakdown under the most severe conditions

          Special additives protect against wear, scuffing and corrosion

          For use at ambient temperatures down to -15 degrees

          Pro Honda shaft drive oil hypoid gear oil

          PROS
            CONS
              4
              Lucas Oil 10048 SAE 75W-90 Synthetic Transmission and Differential Lube - 1 Gallon
              Lucas Oil 10048 SAE 75W-90 Synthetic Transmission and Differential Lube - 1 Gallon
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              • SCORE
                9.1
                KT Score

                KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.

              • Brand
                Lucas Oil
              Features

              Fit Type: Vehicle Specific

              Package Dimensions: 31.75 H x 15.24 L x 15.24 W (centimeters)

              Country of Origin : United States

              Package Weight: 3.447 kilograms

              PROS
                CONS
                  5
                  Hydro Gear 52114 Pack of 2 Spin-On Oil Filters
                  Hydro Gear 52114 Pack of 2 Spin-On Oil Filters
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                  • SCORE
                    9.4
                    KT Score

                    KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.

                  • Brand
                    Hydro-Gear
                  Features

                  Pack of 2

                  Genuine OEM Hydro Gear parts

                  Please note: Consult owner's manual for proper part number identification and proper installation

                  PROS
                    CONS
                      6
                      Lucas Oil LUC10043 Oil SAE 80W-90 Heavy Duty Gear Oil - 1 Quart
                      Lucas Oil LUC10043 Oil SAE 80W-90 Heavy Duty Gear Oil - 1 Quart
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                      • SCORE
                        9.0
                        KT Score

                        KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.

                      • Brand
                        Lucas Oil
                      Features

                      Contains special anti-wear and lubricity agents

                      Helps to control heat

                      Excellent for high performance and heavy-duty applications

                      Fit Type: Universal

                      PROS
                        CONS
                          7
                          SHOE GEAR High Country Mink Oil 3.5 Oz
                          SHOE GEAR High Country Mink Oil 3.5 Oz
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                          • SCORE
                            8.0
                            KT Score

                            KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.

                          • Brand
                            SHOE GEAR
                          Features

                          Prevents salt stains. Waterproofs and conditions leather.

                          PROS
                            CONS
                              8
                              Gauge Gear The Blend (2 oz) | Daily Oil Conditioning Mix for Pierced or Stretched Skin | 100% Natural Piercing Aftercare w/Jojoba Oil | Helps w/Inserting Plugs & Tapers
                              Gauge Gear The Blend (2 oz) | Daily Oil Conditioning Mix for Pierced or Stretched Skin | 100% Natural Piercing Aftercare w/Jojoba Oil | Helps w/Inserting Plugs & Tapers
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                              • SCORE
                                9.5
                                KT Score

                                KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.

                              • Brand
                                Gauge Gear
                              Features
                              PROS
                                CONS
                                  9
                                  ROYAL PURPLE MAX GEAR 75W140 Quart BOTLE
                                  ROYAL PURPLE MAX GEAR 75W140 Quart BOTLE
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                                  • SCORE
                                    7.8
                                    KT Score

                                    KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.

                                  • Brand
                                    Royal Purple
                                  Features

                                  For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.

                                  PROS
                                    CONS
                                      10
                                      Quicksilver 858064Q01 High Performance SAE 90 Gear Lube for Mercury Outboards and MerCruiser Sterndrives, 32 oz
                                      Quicksilver 858064Q01 High Performance SAE 90 Gear Lube for Mercury Outboards and MerCruiser Sterndrives, 32 oz
                                      CHECK LATEST PRICE
                                      • SCORE
                                        8.0
                                        KT Score

                                        KT Score is a ranking system developed by our team of experts. It from 0 to 10 are automatically scored by our advanced technological tool based upon the data collected. Our website is an independent organization and has no relation to the manufacturers, so our reviews are completely objective.

                                      • Brand
                                        Quicksilver
                                      Features

                                      Formulated to protect against corrosion and excessive wear

                                      Designed for outboard and sterndrive applications above 75 HP

                                      Extreme pressure synthetic additives protect gears from metal to metal contact

                                      32 ounce bottle

                                      SAE 90 viscosity

                                      PROS
                                        CONS

                                          Last update on 2023-06-10 / Prices / Affiliate links / Images, and Product Highlights from Amazon Product Advertising API

                                          Editor's Notes

                                          We ranked and reviewed the top 10 Best Gear Oils in 2023. With the support of 54,422 customer's reviews, we hope that this article can give you the most realistic view of these products. The list below contains some main brands as triax, castrol, honda, lucas-oil, hydro-gear, shoe-gear, gauge-gear, royal-purple, quicksilver.

                                          5
                                          3 ratings