Max-Gear 75W90
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Royal Purple Max-Gear 75W90

Part No. 01300 Warranty Details  
$21.99
Quantity  Add to Cart
Max-Gear is an ultra-tough automotive gear oil. It's designed to maximize power and provide unsurpassed protection to heavily loaded gears. It helps make gears run smoother, quieter, cooler and longer without overhauls. Max-Gear is recommended for use in truck, motor home/RV, and automotive front or rear differentials, manual transmissions, and lower gear units of marine engines that specify use of an API GL-5 or GL-4 fluid.
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Concentrated:No
Container Type:Pour Bottle

REVIEW SNAPSHOT®

by PowerReviews
Royal PurpleMax-Gear 75W90
 
4.7

(based on 38 reviews)

Ratings Distribution

  • 5 Stars

     

    (31)

  • 4 Stars

     

    (5)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

94%

of respondents would recommend this to a friend.

Pros

  • Reliable (16)
  • Can withstand use (15)
  • Easy to use (12)

Cons

  • Pricey / poor value (3)

Best Uses

  • Home garage (16)
  • Upkeep (14)
  • Automotive repair shop (8)
    • Reviewer Profile:
    • Auto enthusiast (9), Casual driver (6), Mechanic (3)
    • Reviewer Profile:
    • Auto enthusiast (10), Casual driver (4), Truck enthusiast (4), Competitive driver (3), Mechanic (3)
    • Was this a gift?:
    • No (4)

Most Liked Positive Review

 

You Get What You Pay For.

I will not pay less for protection when it comes to lubricants.You spend 600.00 for a set of 4:88 gears from Eaton,why spend [$] for protection. To me its a no...Read complete review

I will not pay less for protection when it comes to lubricants.You spend 600.00 for a set of 4:88 gears from Eaton,why spend [$] for protection. To me its a no brainer.

VS

Most Liked Negative Review

 

Not ideal for my G35

Product is probably excellent, but it didn't work for my 2005 Infiniti G35. Royal Purple tech support said it was fine for both my GL-4 grade manual transmission and my GL-5...Read complete review

Product is probably excellent, but it didn't work for my 2005 Infiniti G35. Royal Purple tech support said it was fine for both my GL-4 grade manual transmission and my GL-5 differential. When the weather turned cold in TN, the differential started to whine (sounded like a window leaking air), Switched the diff back to conventional Valvoline 80W-90 GL-5 and the whine stopped. Transmission works ok with the Royal Purple but does not shift as easily. I was expecting easier cold shifting due to the lower winter viscosity. I have no plans to change the transmission. Bottom line is the product was not ideal for my G35.

Reviewed by 38 customers

Displaying reviews 1-10

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5.0

Good stuff

By 

from undisclosed

Verified Buyer

Comments about Royal Purple Max-Gear 75W90:

good stuff

 
5.0

The Best

By 

from undisclosed

Verified Buyer

Comments about Royal Purple Max-Gear 75W90:

The Best

 
5.0

Great product

By 

from Humacao, Puerto Rico

Verified Buyer

Pros

  • Available at any store and time

Cons

    Best Uses

    • Great for daily an track days for he manual.

    Comments about Royal Purple Max-Gear 75W90:

    Great and easy to use.

    • Was this a gift?:
    • No
     
    5.0

    Awesome

    By 

    from Fort brag

    Verified Buyer

    Comments about Royal Purple Max-Gear 75W90:

    Awesome

    • Was this a gift?:
    • No
     
    5.0

    RP has been my choice for years

    By 

    from Jersey City

    Verified Buyer

    Comments about Royal Purple Max-Gear 75W90:

    Been using RP oils for years from motor oil to gear oil and filters too.

    • Was this a gift?:
    • No
     
    5.0

    Perfection

    By 

    from Madison, MS

    See all my reviews

    Verified Buyer
    3 or more reviews submitted

    Comments about Royal Purple Max-Gear 75W90:

    Perfection

     
    5.0

    Keeps my rear nice & quiet

    By 

    from Somers Point, NJ

    Verified Buyer

    Pros

      Cons

      • Price is a little expensive

      Best Uses

        Comments about Royal Purple Max-Gear 75W90:

        I used other types of gear oil & this one seems to work the best

         
        5.0

        Outstanding gear oil

        By 

        from Pennsylvania

        Verified Buyer

        Pros

          Cons

          • None

          Best Uses

            Comments about Royal Purple Max-Gear 75W90:

            Royal Purple is the perfect oil for both casual and heavy duty use. I have used them for years in daily drivers, performance street and track cars, heavy duty diesel trucks, and both small and large tractors, from farm and agricultural to earth moving backhoes and dozers.

            (4 of 10 customers found this review helpful)

             
            5.0

            GREAT gear lube for truck,boat,and cycle

            By 

            from Lakeland, FL

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

            Pros

            • Can Withstand Use
            • Easy To Use
            • Motorcycle Final Drive
            • Outboard Motor Lower Unit
            • Reliable
            • Truck Differential

            Cons

              Best Uses

              • Home Garage
              • Upkeep

              Comments about Royal Purple Max-Gear 75W90:

              I used this gear lube in my 2005 Chevy Silverado and in the lower unit of my 2015 Tohatsu/Nissan 9.8hp outboard boat motor. It goes well beyond the specifications for both my truck and outboard motor. I also use it in the final drive of my motorcycle (Suzuki C109R Boulevard 1800) and it's great.

              (4 of 6 customers found this review helpful)

               
              5.0

              Does what it says and then some

              By 

              from Ruskin, Fl.

              About Me Auto Enthusiast

              Verified Buyer
              Helpful Reviewer

              Pros

                Cons

                  Best Uses

                  • Automotive Repair Shop
                  • Home Garage

                  Comments about Royal Purple Max-Gear 75W90:

                  Tried other products to quiet the rear end chatter in my posi-traction 1978 Corvette. One application with Royal Purple Max-Gear 75W90 took care of the problem.

                  Displaying reviews 1-10

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                  Do you have questions about this product?

                   

                  Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

                  39 Questions | 41 Answers
                  Displaying questions 1-10Previous | Next »
                  • Q:

                    How does it work in a 2000 gmc yukon denali rear
                    Asked on 5/10/2017 by Danny from Suitland, md

                    1 answer

                    • CUSTOMER CARE

                      A:

                      Hi Danny! This Royal Purple Max-Gear 75W90 (Part No. 01300) is compatible for use in truck and automotive front or rear differentials, manual transmissions and lower gear units of marine engines that specify use of an API GL-5 or GL-4 fluid. This is an ultra-tough, high performance automotive gear oil designed to provide maximum protection to heavily loaded gears while maximising power throughout the drive train. For more information, please copy and paste this product data sheet link. URL - http://www.royalpurpleconsumer.com/wp-content/uploads/PS_Max_Gear.pdf

                      Answered on 5/13/2017 by Solomon from AAP
                  • Q:

                    Should I use the 90 or 140 weight in my 1979 F150 Ranger XLT Diff
                    Is one quart enough
                    ALSO WHITCH IS THE BEST RP TRANS FLUID I HAVE A 351 MOD WITHA C-6
                    Asked on 5/10/2017 by Bobby from AVON PARK FL

                    1 answer

                    • A:

                      75*90 should be fine ....synchro max royal purple for transfer case or manual transmission, max atf royal purple for automatic transmission. Advance auto doesn't carry royal purple synchro max. If you are still confused call into any advance auto Part's they can look up fluid specs for you.
                      Sent from my iPhone

                      Answered on 5/10/2017 by aw.thornhill from undisclosed
                  • Q:

                    Would it work in 2007 BMW X3 Automatic? Thanks
                    Asked on 5/10/2017 by Kamran from Villa Rica, GA

                    1 answer

                    • CUSTOMER CARE

                      A:

                      Glad to assist, Kamran! The Royal Purple Max-Gear 75W90 - Part No. 01300 is only recommended for the differential on a 2007 BMW X3, if it is the standard open differential. If you have the limited-slip differential on this 2007 BMW X3, we recommend the Royal Purple Max Gear 75W-140 - Part No. 01301. The factory capacity of the differential is listed at 0.95 quarts (168K differential), or 1.05 quarts (188K differential).

                      Answered on 5/11/2017 by Solomon from AAP
                  • Q:

                    Is this alright to use in a 1999 f-150 4x4
                    Asked on 4/3/2017 by Brad from East Tennessee

                    1 answer

                    • CUSTOMER CARE

                      A:

                      Hi Brad! This Royal Purple Max-Gear 75W90 Part No. 01300 is not recommended to use in your 1999 Ford F-150 4x4. However, We would suggest you this Royal Purple Max Gear 75W-140 High Performance Synthetic Automotive Gear Oil (Part No. 01301) which is an exact oil to use in both the differential for your vehicle. It helps to maximize your vehicle's horsepower and extends gear life.

                      Answered on 4/4/2017 by Solomon from AAP
                  • Q:

                    Would this work in the geared hubs on my hmmwv 998? Also, would it work in the differentials on same vehicle? Thanks.
                    Asked on 2/8/2017 by Demoman from York, PA

                    1 answer

                    • CUSTOMER CARE

                      A:

                      Hi Demoman, glad to assist you! This Royal Purple Max-Gear 75W90 (Part No. 01300) is recommended for use in truck and automotive front or rear differentials, manual transmissions and lower gear units of marine engines that specify use of an API GL-5 or GL-4 fluid. For more information, please copy and paste this product data sheet link. URL - http://www.royalpurpleconsumer.com/wp-content/uploads/PS_Max_Gear.pdf

                      Answered on 2/9/2017 by Steve from AAP
                  • Q:

                    is this oil synthetic? will it work in a 2001 f350 with a 5.4l?
                    Asked on 3/26/2016 by PAL from Chicopee,mass.

                    1 answer

                  • Q:

                    Can I use this oil in my 2007 FJ Cruiser rear diff.and TrnsferCase?
                    Asked on 4/29/2015 by prisquito from Silver Spring,MD

                    1 answer

                    • CUSTOMER CARE

                      A:

                      Hi Prisquito, I'm happy to assist you! Yes, you can use this Royal Purple Max-Gear 75W90 - Part No. 01300 in your 2007 Toyota FJ Cruiser rear differential and transfer case. Here is the link to the Product Data Sheet of this oil:

                      http://www.royalpurpleconsumer.com/wp-content/uploads/PS_Max_Gear.pdf

                      Answered on 4/29/2015 by Solomon
                  • Q:

                    Hi! Will this lubricant work in my 2003 chevy silverado 4x4 rear differential? Also what is the capacity that my rear differential holds?
                    Asked on 1/3/2015 by cliff14043 from Depew,NY

                    1 answer

                  • Q:

                    Is this compatible for 2000 Nissan frontier 5 speed transmission with synchronizer trans
                    Asked on 12/14/2014 by Billy from VA

                    1 answer

                    • CUSTOMER CARE

                      A:

                      Hi Billy, glad to assist you! Yes, this Royal Purple Max Gear 75W-90 is compatible with the 5 speed manual transmission on a 2000 Nissan Frontier. I do not recommend topping off/mixing this with another brand product. If you are wanting to use the Max Gear 75W-90 in your manual transmission I would recommend draining out all of the oil that is in the transmission, and doing a complete fill with the Max Gear 75W-90. Any residual amounts that are left by the previous fluid used in the transmission will mix and be compatible with the Max Gear 75W-90.

                      Answered on 12/15/2014 by Solomon
                  • Q:

                    is this the right product for a 2003 dodge ram 1500 3.7 L
                    Differential if so how much do I need to re fill the Differential
                    thank you
                    Asked on 12/1/2014 by bmc from florida

                    1 answer

                    • CUSTOMER CARE

                      A:

                      Hi Bmc, I'm glad to help you! No, part #01300 is Royal Purple Max Gear 75W-90. Your 2003 Dodge Ram 1500 3.7L V6 will have the 9.25 inches rear differential, and that differential calls for a 75W-140 viscosity. I therefore recommend Royal Purple Max Gear 75W-140 (part #01301, quart bottle). Your 9.25 inches rear differential takes 2.45 quarts.

                      Answered on 12/5/2014 by Solomon
                  Displaying questions 1-10Previous | Next »

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