Synthetic Gear Lubricant LS 75W-90 (1 qt.)
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Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.)

Part No. 104361/98W573 Warranty  
Mobil 1 Synthetic Gear Lubricant LS is a supreme-performance, synthetic, multipurpose SAE 75W-90 automotive gear lubricant that's designed to meet the performance requirements of 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 Lubricants LS 75W-90 performs exceptionally over a wide range of temperatures. Mobil 1 Synthetic Gear Lubricant LS 75W-90 achieves this through a proprietary formulation that delivers optimized viscosity-temperature properties and a high level of inherent formulation stability to protect against thermal and oxidative degradation, wear, corrosion and viscosity loss associated with premature shearing. It also can be used in extended service and for aiding in fuel economy.

Product Features:
  • Meets the most severe API Service MT-1 and GL-5 EP gear oil service classification
  • Greater film strength at higher operating temperatures, reduced fluid friction and low-temperature application down to -50°C
  • Outstanding protection against low-speed/high-torque wear and high-speed scoring
  • Compatible with typical automotive seals and gaskets
  • 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-90 is recommended for use in modern high-performance automobiles like SUVs, Vans and light-duty trucks that require API GL-5 and MT-1 level 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:75W90

REVIEW SNAPSHOT®

by PowerReviews
Mobil1Synthetic Gear Lubricant LS 75W-90 (1 qt.)
 
4.7

(based on 42 reviews)

Ratings Distribution

  • 5 Stars

     

    (34)

  • 4 Stars

     

    (6)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (1)

97%

of respondents would recommend this to a friend.

Pros

  • Reliable (20)
  • Can withstand use (19)
  • Easy to use (17)
  • Compact (5)

Cons

    Best Uses

    • Upkeep (20)
    • Home garage (19)
    • Automotive repair shop (16)
      • Reviewer Profile:
      • Auto enthusiast (3)
      • Reviewer Profile:
      • Auto enthusiast (18), Mechanic (11), Truck enthusiast (11), Casual driver (8), Competitive driver (4)

    Most Liked Positive Review

     

    good product

    Doing maintain on my 06 Toyota tacoma, T-case, Manual transmission and front and rear axles, FYI you still need to buy the LS additve it's says it has it in the fluid, after...Read complete review

    Doing maintain on my 06 Toyota tacoma, T-case, Manual transmission and front and rear axles, FYI you still need to buy the LS additve it's says it has it in the fluid, after I changed the fuild the chattering started, so when and got so diff additive and all good.

    VS

    Most Liked Negative Review

     

    Waste of money- Tundra LS

    Changed to Mobil LS1 in my 2006 Tundra 4WD Limited slip (LS) about 8 months ago. After about 3-5k miles I started getting a chattering noise when turning sharp. Thought it was...Read complete review

    Changed to Mobil LS1 in my 2006 Tundra 4WD Limited slip (LS) about 8 months ago. After about 3-5k miles I started getting a chattering noise when turning sharp. Thought it was the front end, could not find anything wrong. Transmission maybe??? So I had the trans flushed at the Toyo dealer.(120k miles on truck). Could not be my rearend...I have Mobil 1. Changed over to Lucus 80W-90 standard gear oil with 1/3 of a bottle of the KW LS additive. My truck drives perfect again and turns are very smooth. Can't believe it took me 20k miles to figure out this product is all hype. The oil was still very clear though when I drained it. Only positive thing I can think of?

    Reviewed by 42 customers

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    Displaying reviews 1-10

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    5.0

    Trusted name

    By Dan

    from Athol, MA

    About Me Mechanic

    Verified Buyer
    Level 2

    Pros

      Cons

        Best Uses

          Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):

          Has limited slip additive included.

          Comment on this review(earn points)

          (6 of 12 customers found this review helpful)

           
          5.0

          High Quality Product

          By 15PSI

          from Leesburg, VA

          About Me Auto Enthusiast

          Verified Buyer
          Helpful Reviewer

          Pros

          • Can Withstand Use
          • Reliable

          Cons

            Best Uses

            • Automotive Repair Shop
            • Home Garage
            • Upkeep

            Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):

            Synthetics are always the best lubricant. Shear strength, viscosity consistency and ease of use in any climate are always benefits of synthetics over conventional petroleum products. I use Mobil 1 products in my GT, my H-D, the wife's Lexus and my 17 year old 4Runner. Good stuff.

            Comment on this review(earn points)

            (6 of 12 customers found this review helpful)

             
            4.0

            Not much to say, a product that works

            By Garkit

            from Asheville, NC

            About Me Auto Enthusiast, Truck Enthusiast

            Verified Buyer
            Helpful Reviewer

            Pros

            • Can Withstand Use
            • Easy To Use
            • Reliable

            Cons

              Best Uses

              • Automotive Repair Shop
              • Home Garage

              Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):

              you'll want a fluid pump of some sort to simplify
              getting it into the rear end

              Comment on this review(earn points)

              (5 of 11 customers found this review helpful)

               
              5.0

              Best bang for the buck

              By Average Joel

              from Virginia Beach, VA

              About Me Mechanic

              Verified Buyer
              Level 3

              Pros

              • Good value
              • Ls Additive Not Required
              • Trusted Name

              Cons

                Best Uses

                  Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):

                  I've used Mobil1 gear oil for more than ten years in nearly everything. I've used it in more than a few limited-slip differentials with no chattering or other nonsense. But they were all Fords. Based on other reviews, some other manufacturer's limited-slip differentials may need limited-slip additive to be added. Though I would try it without before doing this. If you do experience chattering, you can extract a few ounces and replace it with the additive. Some issues may be attributed to using the incorrect weight. Always use what the manufacturer recommends. If it requires 75w-140, do not try to save a few bucks with 75w-90. If it requires 75w-90, do not think that the thicker oil is good for your application. It will decrease your efficiency and prematurely wear your components.

                  Comment on this review(earn points)

                  (5 of 10 customers found this review helpful)

                   
                  5.0

                  Great Stuff

                  By luke duke

                  from shelby,NC

                  About Me Auto Enthusiast, Competitive Driver, Mechanic, Truck Enthusiast

                  Verified Buyer
                  Helpful Reviewer

                  Pros

                    Cons

                      Best Uses

                        Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):

                        Use in race car as well

                        Comment on this review(earn points)

                        (6 of 12 customers found this review helpful)

                         
                        5.0

                        save with Synthetic

                        By stunner

                        from york PA

                        About Me Auto Enthusiast, Mechanic

                        Verified Buyer
                        3 or more reviews submitted

                        Pros

                        • Reliable

                        Cons

                          Best Uses

                          • Automotive Repair Shop
                          • Home Garage
                          • Upkeep

                          Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):

                          good product, best price for synthetic gear oil

                          Comment on this review(earn points)

                          (6 of 11 customers found this review helpful)

                           
                          5.0

                          Normal maintenance change

                          By Kenny

                          from Tampa, FL

                          About Me Auto Enthusiast, Casual Driver, Mechanic, Truck Enthusiast

                          Verified Buyer
                          Helpful Reviewer

                          Pros

                          • Can Withstand Use
                          • Reliable

                          Cons

                            Best Uses

                            • Automotive Repair Shop
                            • Home Garage
                            • Upkeep

                            Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):

                            Part of my regular maintenance gear oil change. Just hit 215,000 miles in my '98 Tacoma 3.4L MT 4x4. No issues and everthing runs like a champ. Might not be a redline product, but for the price it has always worked well for me (esp with a 30% off coupon!).

                            Comment on this review(earn points)

                            (6 of 11 customers found this review helpful)

                             
                            4.0

                            Good gear lube

                            Pros

                            • Easy To Use
                            • Reliable

                            Cons

                              Best Uses

                              • Automotive Repair Shop
                              • Home Garage

                              Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):

                              Very happy with this gear oil. Gear shifting is a lot smoother now, and it doesn't smell as bad as traditional gear oil. Only 4 stars because I still had to add a friction modifier even though the product says it's for limited slip.

                              Comment on this review(earn points)

                              (6 of 12 customers found this review helpful)

                               
                              5.0

                              gear lube

                              By wayne

                              from hampton

                              About Me Truck Enthusiast

                              Verified Buyer
                              Helpful Reviewer

                              Pros

                                Cons

                                  Best Uses

                                  • Upkeep

                                  Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):

                                  Mobil 1 synthetic gear lube 75w90 I put this in my 89 Toyota pickup it has 183,000 still going strong. maybe I will get better gas mileage. I use Mobil 1 engine oil as well. love all of their products.

                                  Comment on this review(earn points)

                                  (6 of 12 customers found this review helpful)

                                   
                                  5.0

                                  Lubricates and smells foul

                                  By Bob

                                  from NEPA

                                  About Me Truck Enthusiast

                                  Verified Buyer

                                  Pros

                                    Cons

                                      Best Uses

                                        Comments about Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.):

                                        Works as gear oil should. Used it to change the rear dif fluid in my 2010 Tundra.

                                        Comment on this review(earn points)

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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.

                                        26 Questions | 30 Answers
                                        Displaying questions 1-10Previous | Next »
                                        • Q:

                                          Can this be used in a Transfer Case for a 1991 Jeep Cherokee XJ? It already is full with it.
                                          Asked on 11/24/2014 by Joshua from Denver

                                          1 answer

                                          • CUSTOMER CARE

                                            A:

                                            Hi Joshua, I'm glad to help you! The LS 75-90 and 140 is GL-5 rated. As long as your differential in your owners manual and says you can use GL-5 you are okay. If you need a GL-4 the GL-5 will not work and is not back words compatible, it has yellow metals and will not work in that application.

                                            Answered on 11/25/2014 by Solomon
                                        • Q:

                                          Can I use or should I ask is this the recommended rear gear oil for a 1969 5.7L Corvette, and can I add AC Delco additive later if nessesary (Part # 1052358).
                                          Asked on 11/12/2014 by Rickdett from Gloucester NJ

                                          1 answer

                                          • CUSTOMER CARE

                                            A:

                                            Hi Rickdett! Yes, that should be fine and add friction modifier if you hear chattering while the vehicle is in operation.

                                            Answered on 11/16/2014 by Solomon
                                        • Q:

                                          will Synthetic Gear Lubricant LS 75W-90 with GL5 api suitable for my 1993 mitsubishi lancer .it recommended hypoid sae75-90 gl4
                                          Asked on 9/4/2014 by amateur mechanic from UAE

                                          1 answer

                                          • CUSTOMER CARE

                                            A:

                                            I'm happy to help, Amateur Mechanic! This Mobil1 Synthetic Gear Lubricant LS 75W-90 (Part No. 104361/98W573) does not specifically state that it is yellow metal safe. I suggest Royal Purple Max Gear Synthetic Gear Oil 75W-90 for your 1993 Mitsubishi Lancer (or Mirage). Royal Purple indicates that it is safe for use in both GL-4 and GL-5 applications and yellow metal safe.

                                            Answered on 9/5/2014 by Heath, ASE Parts Specialist from AAP
                                        • Q:

                                          1994 Jeep Wrangler AX-15 transmission- I have gotten conflicting opinions as to what oil to use in my reman transmission. GL4 70W80, GL5 75-90, and others. Is this the right stuff?
                                          Asked on 7/23/2014 by Andy from Davids Corners, NY

                                          1 answer

                                          • CUSTOMER CARE

                                            A:

                                            Glad to assist, Andy! You cannot utilize this product if your transmission requires an API GL-4 product for the manual transmission.

                                            Answered on 7/25/2014 by Vincent from AAP
                                        • Q:

                                          For 2001 Toyota Sequoia do I need to add any additive to this for the front and rear differential, if yes how much of this lubricant with the additive(please recommend).
                                          Also the same question as above for my Transfercase oil.
                                          Thanks in advance!
                                          Asked on 3/24/2014 by Lashpush from Schaumburg, IL

                                          1 answer

                                          • CUSTOMER CARE

                                            A:

                                            I'm happy to help, Lashpush! According to the information we have, no additive is required for your 2001 Toyota Sequoia. If you know for certain that you have a limited slip differential, most likely it would be in the rear, then you may require an additive. To find out your axle type there should be a sticker in the driver's side door jamb with an Axle Code. The transfer case does not require any additive. There is some information about Toyota axle codes here available - however this information is provided by a 3rd party and Advance Auto Parts is not responsible for the information provided: http://www.4x4wire.com/toyota/faq/vin/. I've also located some information in regards to the introduction of limited slip to the Sequoia from a question answered by a Certified Toyota and Lexus technician here: http://www.justanswer.com/toyota/3k388-toyota-sequoia-rear-end-transfer-case-front-end-seals.html

                                            Answered on 3/25/2014 by Heath, ASE Parts Specialist from AAP
                                        • Q:

                                          Can I use Mobile 1 LS 75W-90 in my 2011 Toyota FJ Cruiser 4X4 rear/front differentials and transfer case?
                                          Asked on 1/16/2014 by Stevo from Texas

                                          1 answer

                                          • CUSTOMER CARE

                                            A:

                                            Great question! Mobil 1 makes great lubricants for your 2011 Toyota FJ Cruiser 4x4. Being GL-5 rated makes this an even better product. That being said Toyota recommends the use of their 75W-85 for the differentials and for the transfer case I see they recommend the Toyota transfer case LF gear oil. I found that a majority of FJ Cruiser owners that post online seem to use 75W-90 full synthetic lubricants. For any warranty purposes I would recommend staying with the Toyota recommended products.

                                            Answered on 1/16/2014 by Heath, ASE Parts Specialist from AAP
                                        • Q:

                                          I have an 02 Chevrolet Avalanche (1500 series) Z71 4X4 and the rear axle does NOT have Limited Slip. Is this product correct for my application as I notice the label states LS? Please advise. Thanks - David
                                          Asked on 10/2/2013 by David from Buffalo, NY

                                          1 answer

                                          • CUSTOMER CARE

                                            A:

                                            Hi David, this Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.) - part# 104361/98W573 will work fine on your 2002 Chevrolet Avalanche (1500 series) Z71 that does not have limited slip in the rear axle. 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 10/3/2013 by Vincent from AAP
                                        • Q:

                                          Does this lube meet GM Part # 12378261 or Equivalent GM Specification 9986115 ?
                                          Asked on 8/18/2013 by NONE from Lambertville, NJ

                                          1 answer

                                          • CUSTOMER CARE

                                            A:

                                            The Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.) (Part No. 104361/98W573) meets the most severe API Service MT-1 and GL-5 EP gear oil service classification. Mobil 1 Synthetic Gear Lubricant LS 75W-90 is recommended for use in modern high-performance automobiles like SUVs, Vans and light-duty trucks that require API GL-5 and MT-1 level performance. Not recommended for automatic, manual or semiautomatic transmissions for which engine oil or automatic transmission fluids are recommended. However, I would suggest you to use the gear lubricant recommended in your vehicle owner's manual in order to avoid intermittence. For more information, 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 8/19/2013 by Steve from AAP
                                        • Q:

                                          Can I use in a 1997 Ferrari F355, 6-speed manual?
                                          Asked on 8/5/2013 by 4RE4ME from VA

                                          1 answer

                                          • CUSTOMER CARE

                                            A:

                                            This Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.) - part# 104361/98W573 meets the most severe API Service MT-1 and GL-5 EP gear oil service classification. Mobil 1 Synthetic Gear Lubricant LS 75W-90 is recommended for use in modern high-performance automobiles like SUVs, Vans and light-duty trucks that require API GL-5 and MT-1 level performance. Not recommended for automatic, manual or semiautomatic transmissions for which engine oil or automatic transmission fluids are recommended. However, I would suggest you to use the gear lubricant recommended in your vehicle owner's manual in order to avoid intermittence. For more information, 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 8/5/2013 by Vincent from AAP
                                        • Q:

                                          Can this oil be used for a volvo penta SX drive unit
                                          Asked on 7/11/2013 by Jose

                                          1 answer

                                          • CUSTOMER CARE

                                            A:

                                            The Mobil1 Synthetic Gear Lubricant LS 75W-90 (1 qt.) (Part No. 104361/98W573) meets the most severe API Service MT-1 and GL-5 EP gear oil service classification. Mobil 1 Synthetic Gear Lubricant LS 75W-90 is recommended for use in modern high-performance automobiles like SUVs, Vans and light-duty trucks that require API GL-5 and MT-1 level performance. Not recommended for automatic, manual or semiautomatic transmissions for which engine oil or automatic transmission fluids are recommended. For further assistance regarding the Part No. 104361/98W573, please provide the year, make, model and engine size of your vehicle. For more information, 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 7/11/2013 by Steve from AAP
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