Synthetic Gear Lubricant LS 75W-140 (1 qt.)
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Mobil1 Synthetic Gear Lubricant LS 75W-140 (1 qt.)

Part No. 102490/98FS32 Warranty  
Mobil 1 Synthetic Gear Lubricant LS 75W-140 is a supreme-performance, synthetic, multipurpose, automotive gear lubricant designed to meet the highest-level performance requirements of many modern passenger vehicles in a wide range of operating conditions, including limited-slip applications, as well as deliver outstanding power transfer performance. Compared to conventional hypoid gear lubricants, Mobil 1 Synthetic Gear Lubricant LS 75W-140 performs exceptionally over a wide range of temperatures. Mobil 1 Synthetic Gear Lubricant LS 75W-140 achieves this through a unique proprietary combination of synthetic base oils and an additive system including the SuperSyn antiwear system. Delivers optimized viscosity-temperature properties together with a high level of inherent formulation stability for protection against thermal and oxidative degradation, wear, corrosion and viscosity loss associated with premature shearing.

Product Features:
  • Meets the API Service GL-5 EP gear oil service classification
  • Performs over a wide range of temperatures
  • Reduced fluid friction
  • Reduces wear and spalling under the high-speed, high-torque and high-horsepower conditions in many sport utility vehicles, vans, light trucks, and cars
  • Not recommended for automatic, manual or semiautomatic transmissions for which engine oil or automatic transmission fluids are recommended
  • Mobil 1 Synthetic Gear Lubricant LS 75W-140 is recommended for use in modern high-performance vehicles like sport utility vehicles, vans and light-duty trucks requiring API GL-5 performance
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ATV:No
Container Size:1 qt
Container Type:Bottle
Conventional:No
Detergent or Non-Detergent:Detergent
Diesel Approved:No
High Mileage:No
Motorcycle:No
Race Only:No
Synthetic Blend:No
Synthetic:Yes
Viscosity Index:75W140

REVIEW SNAPSHOT®

by PowerReviews
Mobil1Synthetic Gear Lubricant LS 75W-140 (1 qt.)
 
4.7

(based on 19 reviews)

Ratings Distribution

  • 5 Stars

     

    (14)

  • 4 Stars

     

    (5)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Easy to use (11)
  • Reliable (10)
  • Can withstand use (5)

Cons

    Best Uses

    • Home garage (12)
    • Upkeep (6)
    • Automotive repair shop (4)
      • Reviewer Profile:
      • Auto enthusiast (3)
      • Reviewer Profile:
      • Auto enthusiast (7), Mechanic (4), Truck enthusiast (4), Casual driver (3)

    Reviewed by 19 customers

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    Displaying reviews 1-10

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    (3 of 6 customers found this review helpful)

     
    5.0

    Best fluid for Jeep Rubicons

    By RoKn

    from Kansas City

    About Me Auto Enthusiast, Competitive Driver, Mechanic, Real Jeeper

    Verified Buyer
    Helpful Reviewer

    Pros

    • Can Withstand Use
    • Easy To Use
    • Reliable

    Cons

    • Price

    Best Uses

    • Home Garage
    • Upkeep

    Comments about Mobil1 Synthetic Gear Lubricant LS 75W-140 (1 qt.):

    I use Mobil1 75-140 in my Jeep Wrangler with the Dana 44 and air lockers. I 4wheel hard 2x a month, going through mud and water.

    Have had ZERO issues with this fluid, but I do keep up on my fluids maintenance.

    You get what you pay for, IMO.

    Comment on this review(earn points)

    (3 of 6 customers found this review helpful)

     
    5.0

    worked for my F150

    By ytcy

    from Cape Cod MA

    About Me Truck Enthusiast

    Verified Buyer
    Helpful Reviewer

    Pros

    • Easy To Use

    Cons

      Best Uses

      • Helped Stop Rear Chatter

      Comments about Mobil1 Synthetic Gear Lubricant LS 75W-140 (1 qt.):

      Add Fords noslip

      Comment on this review(earn points)

      (3 of 6 customers found this review helpful)

       
      5.0

      Quality

      By 5.0 mustang

      from Illinois

      About Me Auto Enthusiast

      Verified Buyer
      Level 2

      Pros

      • Reliable

      Cons

        Best Uses

        • Home Garage

        Comments about Mobil1 Synthetic Gear Lubricant LS 75W-140 (1 qt.):

        Great Mobil 1 quality

        Comment on this review(earn points)

        (3 of 6 customers found this review helpful)

         
        5.0

        Trusted name

        By caddydaddy

        from Belle Chasse, La

        About Me Casual Driver

        Ask me a question

        Verified Buyer
        Helpful Reviewer

        Pros

        • Can Withstand Use

        Cons

          Best Uses

          • Home Garage

          Comments about Mobil1 Synthetic Gear Lubricant LS 75W-140 (1 qt.):

          I've used Mobil 1 gear oil in my vehicles for years. Never had any problems.

          Comment on this review(earn points)

          (2 of 5 customers found this review helpful)

           
          5.0

          Quality product from a 1st rate company

          By wally

          from anaheim Ca

          Verified Buyer
          Level 1

          Comments about Mobil1 Synthetic Gear Lubricant LS 75W-140 (1 qt.):

          Just Remember to Add the Limited Slip additive to the rear axal to quite down the noise.

          Comment on this review(earn points)

          (3 of 6 customers found this review helpful)

           
          4.0

          What can I say - it's gear lube...

          By Faceless Bob

          from USA

          About Me Auto Enthusiast

          Verified Buyer
          Helpful Reviewer

          Pros

          • Aa Coupon Works For This
          • Brand Name
          • Reliable

          Cons

          • Extraordinarily Expensive

          Best Uses

            Comments about Mobil1 Synthetic Gear Lubricant LS 75W-140 (1 qt.):

            I plan on doing a fair amount of towing, so I wanted a synthetic 140 weight gear lube.

            I bought four quarts of this for the front and rear differentials in my AWD truck. Mobil is a good brand and I cannot imagine ever needing to swap it out again, unless I find myself fording some rivers in the future. Should provide better protection than the 80W-90 oil that is spec'd.

            A/A's retail price for this stuff is borderline ridiculous, but the 40% off online coupon codes they offer from time to time make purchasing some more reasonable.

            Comment on this review(earn points)

            (3 of 5 customers found this review helpful)

             
            5.0

            good stuff

            By shadetreemech

            from nj

            About Me Auto Enthusiast, Truck Enthusiast

            Verified Buyer
            3 or more reviews submitted

            Pros

            • Easy To Use
            • Reliable

            Cons

              Best Uses

              • Automotive Repair Shop
              • Home Garage
              • Roadside Repairs
              • Upkeep

              Comments about Mobil1 Synthetic Gear Lubricant LS 75W-140 (1 qt.):

              good stuff doesnt get any better.

              Comment on this review(earn points)

              (4 of 8 customers found this review helpful)

               
              5.0

              Good gear oil for Dodge Nitro

              By C

              from Florida

              About Me Casual Driver

              Verified Buyer
              Helpful Reviewer

              Pros

              • Compact Design
              • Easy To Use

              Cons

                Best Uses

                • Home Garage

                Comments about Mobil1 Synthetic Gear Lubricant LS 75W-140 (1 qt.):

                Used for my 07 Dodge Nitro R/T Rear diff. Seems like great stuff thus far.

                Comment on this review(earn points)

                (3 of 6 customers found this review helpful)

                 
                5.0

                Mobil 1 is the best

                By Perry lee

                from Newnan,ga

                About Me Mechanic

                Verified Buyer
                Helpful Reviewer

                Pros

                • Reliable

                Cons

                  Best Uses

                  • Home Garage

                  Comments about Mobil1 Synthetic Gear Lubricant LS 75W-140 (1 qt.):

                  Simple the best.

                  Comment on this review(earn points)

                  (8 of 16 customers found this review helpful)

                   
                  5.0

                  great product

                  By mc rider

                  from greensburg pa

                  About Me Motorcyle Enthusiast

                  Verified Buyer
                  Helpful Reviewer

                  Pros

                  • Easy To Use
                  • Reliable

                  Cons

                    Best Uses

                    • Harley Transmission

                    Comments about Mobil1 Synthetic Gear Lubricant LS 75W-140 (1 qt.):

                    Very good

                    Comment on this review(earn points)

                    Displaying reviews 1-10

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                    Do you have questions about this product?(earn points for answers!)

                     

                    Ask a question, get answers from real customers and in-house experts. Or contact Customer Care by email or call 1-877-238-2623.

                    11 Questions | 12 Answers
                    Displaying questions 1-10Previous | Next »
                    • Q:

                      Can I use this in transmission of 07 harley ultra classic
                      Asked on 8/30/2014 by BOL

                      1 answer

                      • CUSTOMER CARE

                        A:

                        Sorry, I do not have the fluid specifications for any motorcycles. I recommend checking in your owner's manual or calling a Harley-Davidson dealer to check what your transmission calls for.

                        Answered on 8/31/2014 by K from AAP
                    • Q:

                      Hve 1999 f-150 super cab 4x4 is this correct lube for L/S rear axle
                      Asked on 7/20/2014 by none from cherryville nc

                      2 answers

                      • CUSTOMER CARE

                        A:

                        Glad to assist you! This product is not specifically made for your vehicle. Please refer to your owner's manual for specification.

                        Answered on 7/23/2014 by Vincent from AAP
                      • CUSTOMER CARE

                        A:

                        Glad to assist you! This product is not specifically made for your vehicle. Please refer to your owner's manual for specification.

                        Answered on 7/23/2014 by Vincent from AAP
                    • Q:

                      Is this compatible with outboard motor lower unit gear oil?
                      Asked on 4/22/2014 by CJ from Lake Wisconsin

                      1 answer

                    • Q:

                      Hello,

                      Can this be used to replace the front and rear differential oil for the 2007 limited toyota sequoia? If yes, how many do I need?

                      Thanks!
                      Asked on 1/4/2014 by noob

                      1 answer

                      • CUSTOMER CARE

                        A:

                        Hi noob! Good question! The 75W-140 is required for heavy duty or towing applications only. If you are not towing then you can go for the Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.) - Part No. 104361/98W573 which would be the the right weight for your Sequoia. Front differential requires 2.2 qts and rear requires 2.6 qts approximately.

                        Answered on 1/8/2014 by John the Car-Doc from AAP
                    • Q:

                      I want to know if the Mobil 1 synthetic gear lubricant LS 75W-140 can be used in the transfer case of my 2007 Hummer H3 and if so, how much is needed? The quanity is not stated in the owner's manual. Thank you.
                      Asked on 4/6/2013 by Hummer Newcomer from Austin, TX

                      1 answer

                      • CUSTOMER CARE

                        A:

                        This Mobil1 Synthetic Gear Lubricant LS 75W-140 (1 qt.) - Part No. 98FS32 is not an ideal part for your 2007 Hummer H3 3.7L. However, please refer this Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.) - Part No. 98W573 which would work fine with your vehicle. For any further assistance please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

                        Answered on 4/8/2013 by Morgan from AAP
                    • Q:

                      Does Synthetic Gear Lubricant LS 75W-140 (1qt) by Mobil have a Friction Modifier add to it?
                      Asked on 11/14/2012 by Russ from Ft Myers, FL

                      1 answer

                      • CUSTOMER CARE

                        A:

                        This Mobil1 Synthetic Gear Lubricant LS 75W-140 (1 qt.) - part# 98FS32 features reduced fluid friction and meets the API Service GL-5 EP gear oil service classification. It reduces wear and spalling under the high-speed, high-torque and high-horsepower conditions in many sport utility vehicles, vans, light trucks, and cars. It is not recommended for automatic, manual or semiautomatic transmissions for which engine oil or automatic transmission fluids are recommended. For any further assistance, please visit your nearest Advance Auto store or call us directly at 1-877-ADVANCE (238-2623) and one of our representatives there would be more than happy to assist you.

                        Answered on 11/14/2012 by Vincent from AAP
                    • Q:

                      my SUV differential uses LS 75W-90. Will it works with this LS 75W-140?
                      Asked on 7/2/2011 by Anonymous

                      1 answer

                      • CUSTOMER CARE

                        A:

                        Not recommended for automatic, manual or semiautomatic transmissions for which engine oil or automatic transmission fluids are recommended. Mobil 1 Synthetic Gear Lubricant LS 75W-140 is recommended for use in modern high-performance vehicles like sport utility vehicles, vans and light-duty trucks requiring API GL-5 performance.

                        Answered on 7/4/2011 by Steve from AAP
                    • Q:

                      I have a 2005 Ford F-150 with ltd slip differential, will I need to add an aditive to the mobil 1 ls 75/140 for my vehicle?
                      Asked on 11/24/2010 by Bob from N.C.

                      1 answer

                      • CUSTOMER CARE

                        A:

                        When I worked at oil shops, we always added the additive to Ford vehicles and we were using Mobile1 products.

                        Answered on 11/26/2010 by Mike the Auto Parts Master from AAP
                    • Q:

                      Will this work with a regular axle (no limited slip)?
                      Does this gear lubricant absorb water? I was told the original Ford synthetic does not, we launch a boat and were told to use gear lubricant which absorbs water to avoid any possible corrosion.
                      Asked on 11/19/2010 by Rick from Commerce Township, MI

                      1 answer

                      • CUSTOMER CARE

                        A:

                        This should work just fine if you do not have limited slip. As far as I can find, this does not absorb water.

                        Answered on 11/26/2010 by Mike the Auto Parts Master from AAP
                    • Q:

                      will this be ok for my 1995 4X4 ford in front and rear rearends
                      Asked on 10/18/2010 by joe from louisville ky.

                      1 answer

                      • CUSTOMER CARE

                        A:

                        This will work fine for the rear, but i would suggest a 80w-90 gear oil for the front.

                        Answered on 10/19/2010 by Parker the parts whisperer from AAP
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