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 Details  
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 44 reviews)

Ratings Distribution

  • 5 Stars

     

    (36)

  • 4 Stars

     

    (6)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (1)

98%

of respondents would recommend this to a friend.

Pros

  • Reliable (21)
  • Can withstand use (20)
  • Easy to use (19)
  • Compact (6)

Cons

No Cons

Best Uses

  • Home garage (21)
  • Upkeep (21)
  • Automotive repair shop (17)
    • Reviewer Profile:
    • Auto enthusiast (3)
    • Reviewer Profile:
    • Auto enthusiast (19), Truck enthusiast (13), Mechanic (12), Casual driver (10), Competitive driver (5)

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 44 customers

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Displaying reviews 1-10

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5.0

Best Tranny and rear and front and gearbox Grease, Mobil1

By 

from Eustis,Fl./Mt Dora Line!

About Me Auto Enthusiast, Casual Driver, Competitive Driver, I Just Flushed And Filled, I Use In All My Vehicles, Mechanic, Truck Enthusiast, Use In My 2013 Tacoma

Ask me a question

3 or more reviews submitted

Pros

  • Best Differential Fluid
  • Can Withstand Use
  • Compact Design
  • Easy To Use
  • High Heat Resistant
  • Reliable
  • Safest And Strongest

Cons

  • None Here To Mention
  • Wish Mobil 1 Made Atf Ws

Best Uses

  • Automotive Repair Shop
  • Better Gas Milagesafe
  • Home Garage
  • Personaloffroadfleet
  • Roadside Repairs
  • Upkeep
  • Wont Break Down

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

I just used this in my 2013 Tacoma PreRunner DCLB rear Diff, Excellent choice Miles of safe and no wear driving ahead ! Been using since 1978 in all my toys!

Comment on this review(earn points)

(5 of 11 customers found this review helpful)

 
5.0

good synthetic

By 

from ohio

About Me Casual Driver, Truck Enthusiast

Verified Buyer
3 or more reviews submitted

Pros

  • Easy To Use

Cons

    Best Uses

    • Home Garage

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

    should last longer than oem oil. I only do light wheeling, so I don't worry about getting in deep water.

    Comment on this review(earn points)

    (6 of 13 customers found this review helpful)

     
    5.0

    Trusted name

    By 

    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)

          (14 of 30 customers found this review helpful)

           
          5.0

          High Quality Product

          By 

          from Leesburg, VA

          About Me Auto Enthusiast

          Verified Buyer
          Level 2

          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)

            (15 of 33 customers found this review helpful)

             
            4.0

            Not much to say, a product that works

            By 

            from Asheville, NC

            About Me Auto Enthusiast, Truck Enthusiast

            Verified Buyer
            Level 2

            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)

              (20 of 35 customers found this review helpful)

               
              5.0

              Best bang for the buck

              By 

              from Virginia Beach, VA

              About Me Mechanic

              Verified Buyer
              Level 4

              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)

                  (13 of 28 customers found this review helpful)

                   
                  5.0

                  Great Stuff

                  By 

                  from shelby,NC

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

                  Verified Buyer
                  Level 2

                  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)

                        (18 of 36 customers found this review helpful)

                         
                        5.0

                        save with Synthetic

                        By 

                        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)

                          (20 of 31 customers found this review helpful)

                           
                          5.0

                          Normal maintenance change

                          By 

                          from Tampa, FL

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

                          Verified Buyer
                          Level 2

                          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)

                            (16 of 30 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)

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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.

                              31 Questions | 35 Answers
                              Displaying questions 1-10Previous | Next »
                              • Q:

                                Is the Mobil 1 75w90 compatible with "yellow metals" such as brass or bronze?
                                Asked on 7/28/2015 by aboyandhisdog from Fort Collins, Colorado

                                1 answer

                                • CUSTOMER CARE

                                  A:

                                  Hi Aboyandhisdog, I'm glad to assist you! Unless the transmission specifically recommends an API GL-5 fluid for your transmission, it should not be used. GL-5 gear oils are designed for gears that require a high level of EP (Extreme Pressure) additives to protect gear teeth under extreme stress. Regrettably, these same additives can be very aggressive toward "yellow metals "and are generally not recommended where copper, brass and bronze components are used.

                                  Answered on 7/29/2015 by Solomon
                              • Q:

                                Recommended for 2009 Sportster XL883C Primary/Trans?
                                Asked on 4/2/2015 by raffycastro from Caguas, PR

                                1 answer

                                • CUSTOMER CARE

                                  A:

                                  Happy to help you with your question Raffycastro! This gear oil is not recommended to be used for the Primary/Trans according to Harley Davidson.

                                  Answered on 4/4/2015 by Panda from AAP
                              • Q:

                                Can it be used in 1992 240 Volvo differential ?
                                Asked on 3/8/2015 by p from sp, nj

                                1 answer

                                • CUSTOMER CARE

                                  A:

                                  Hi P, happy to help you! The 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. However, when it comes to repair and maintenance it is always better to refer the vehicle owner's manual for the exact specification and quantity for safer and better results.

                                  Answered on 3/9/2015 by Steve from AAP
                              • Q:

                                WILL THIS WORK IN A 1996 S10 2WD AUTOMATIC 4.3 WITH X VIN... FOR REAR AXLE.
                                Asked on 1/17/2015 by CHAZ

                                1 answer

                              • Q:

                                Hello, and good afternoon.

                                I recently bought a 2014 VW Vento which has 5 gear Standard Transmission, I would like to drain the factory oil and use a Mobil 1 Synthetic Lubricant. Would this work for my car? If not please recommend me the right oil to use in order to have Ultimate protection on it.

                                Thank you!
                                Asked on 12/10/2014 by Jorge

                                1 answer

                                • CUSTOMER CARE

                                  A:

                                  Hi Jorge, happy to help you! The 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. When it comes to repair and maintenance it is always better to refer the vehicle owner's manual for the exact specifications and quantity for safer and better results.

                                  Answered on 12/12/2014 by Steve from AAP
                              • 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
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