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Red Line 50104, 75W85 GL-5, Full Synthetic Gear Oil - 1 Quart

4.8 4.8 out of 5 stars 773 ratings
$23.53 $0.74 per Fl Oz
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Purchase options and add-ons

Brand Red Line
Package Information Bottle
Liquid Volume 32 Fluid Ounces
Item Weight 650 Grams
Recommended Uses For Product Vehicle

About this item

  • Compatible with/in many late model BMW, Dodge, Ford, GM, Jeep, Lexus, Mercedes-Benz, Ram, Toyota
  • Applications include differential oil, final drive oil, gear oil and transfer case fluid
  • Contains additional friction modifiers for suitability with clutch-type limited slip differentials - for most LSDs, no additional friction modifiers are required
  • This product is not designed for use in most manual transmissions or transaxles with synchronizers, as extreme slipperiness may cause shifting problems
  • Known formerly as LightWeight Gear Oil
  • 1 Quart, 1 Bottle
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Red Line 50104, 75W85 GL-5, Full Synthetic Gear Oil - 1 Quart
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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 4 x 4 x 4 inches; 1.43 Pounds
  • Item model number ‏ : ‎ RED50104
  • Date First Available ‏ : ‎ September 27, 2006
  • Manufacturer ‏ : ‎ Red Line
  • ASIN ‏ : ‎ B000J3G8KE
  • Country of Origin ‏ : ‎ USA
  • Customer Reviews:
    4.8 4.8 out of 5 stars 773 ratings

Important information

Legal Disclaimer

CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

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Product Description

Redline Oil
Redline Oil
Redline Oil
Redline Oil
Redline Oil
Redline Oil

What's in the box

  • 75W85 GL-5, Full Synthetic Gear Oil

    • Looking for specific info?

    Customer reviews

    4.8 out of 5 stars
    4.8 out of 5
    773 global ratings

    Customers say

    Customers like the performance, noise, quality, value, and smoothness of the machine lubricant. They mention that it works well, does the job required, and is of top quality. Some appreciate the value for money. That said, some are happy with the oil quality.

    AI-generated from the text of customer reviews

    33 customers mention33 positive0 negative

    Customers are satisfied with the quality of the machine lubricant. They mention that it's a top quality product, well made, and a perfect replacement for expensive Mopar gear oil.

    "...Do moderate amount of off roading, stuff is great." Read more

    "Great product and offers long lasting lubrication for the price compared to Toyota's premium priced oil." Read more

    "Great product, product is factory-manufacture approved and it’s full synthetic gear oil...." Read more

    "The correct oil for my truck. Great stuff." Read more

    30 customers mention30 positive0 negative

    Customers are satisfied with the performance of the lubricant. They mention that it works well, has no issues, and is still clean. Some say that the transfer case operates as intended. Overall, most are happy with the product's performance and recommend it to others.

    "Used for 2017 Tundra. Works well and better priced than OEM. Do moderate amount of off roading, stuff is great." Read more

    "...Works great on my 2012 toyota tacoma." Read more

    "Product seems fine, but if you intend to use a pump to dispense the oil, a common smaller size bottle pump won't screw on...." Read more

    "Great fluid seemed to work well toyota tacoma" Read more

    24 customers mention21 positive3 negative

    Customers like the value of the machine lubricant. They say it's a good item at a reasonable price.

    "Used for 2017 Tundra. Works well and better priced than OEM. Do moderate amount of off roading, stuff is great." Read more

    "Cheaper than the box store. Had to order it at the auto parts store to why not order it at Amazon and have it shipped to the house...." Read more

    "Great price for Redline products!" Read more

    "...Best value without a doubt. In my 2017 Tacoma it feels better than Toyota OEM gear oil for way less money. Do it. Just do it." Read more

    21 customers mention21 positive0 negative

    Customers are satisfied with the quality of the gear oil. They mention that it is an excellent substitute for the factory Toyota gear oil, and a top shelf oil. Some say that the product packing was horrible.

    "...Other than that, the oil seems to lubricate the gears just fine...but time will tell...." Read more

    "...product, product is factory-manufacture approved and it’s full synthetic gear oil...." Read more

    "...packages are the best, but what I will say is the oil has all the right certifications and the right grade for a 2020 RAM 1500 front differential...." Read more

    "...But anyway, the lube works fine in my Ram. 75w85 is an oddball...." Read more

    15 customers mention15 positive0 negative

    Customers are satisfied with the smoothness of the machine lubricant. They mention that it runs smooth, especially in colder temperatures, and that the gears are always much smoother after the switch to this brand. Some say that the whole truck feels more responsive after using the product.

    "...time changing the rear diff oil and I immediately noticed the smoother ride. I will definitely keep using redline going forward for all my gears." Read more

    "Gears are always much smoother after the switch to this brand" Read more

    "...It is a better experience because the whole truck feels more responsive......" Read more

    "...This is the kind of brand you would use for your truck. It runs smooth, no noise, If you read in the back, Toyota is recommended...." Read more

    5 customers mention5 positive0 negative

    Customers are satisfied with the noise level of the machine lubricant. They mention that it runs smooth and makes no noise.

    "...Quality/ Value for money I believe to be good. No noises. No shifting problems.Got here a day early...." Read more

    "...What I found was the transmission shifts easier, quieter, and acceleration is more linear...." Read more

    "...It runs smooth, no noise, If you read in the back, Toyota is recommended. It is better thank any other brands in the market...." Read more

    "...IRS been in the differentials for 10,000 miles now. No noises. No foaming. Seems to work great... And at $25 per quart savings...." Read more

    4 customers mention4 positive0 negative

    Customers find the machine lubricant easy to change. They say the easy paks from Amsoil make things easy. Some say the product is a direct replacement and is much easier to come by.

    "...Supposedly it’s a direct replacement, and is much easier to come by and is cheaper than the Toyota brand." Read more

    "...Dealer quoted $64.79 per quart for Mopar. Very easy job to DIY, need 8mm hex bit, oil pan and an extension...." Read more

    "...and both are great products ... have to admit that the easy paks from Amsoil make things easy compared to Redline’s unique bottles...." Read more

    "Good stuff. Worked great in my 2008 Tundra Crewmax. Easy to change...." Read more

    4 customers mention4 positive0 negative

    Customers are satisfied with the specs of the machine lubricant. They mention that it meets OEM specs exactly, and is better than what Lexus will sell you.

    "Synthetic fluid to replace OEM differential fluid. Matches OEM specs exactly. Can't ask for much more." Read more

    "...And it is by far cheaper and with better specs than what Lexus will sell you.Make sure to use only compatible fluids in your vehicle." Read more

    "High quality transfer case oil for Toyota Trucks - match OEM spec precisely...." Read more

    "Great gear oil that meets BMW specs for differential..." Read more

    Toyota 4Runner gears are happy again
    5 Stars
    Toyota 4Runner gears are happy again
    For Pete's sake (slippery Pete that is) why can't the bottle makers be held to a standard for the sizing of the bottle openings. While the slippery Pete pump can still be used, it would be nice if I could have had a threaded option for stability. Other than that, the oil seems to lubricate the gears just fine...but time will tell.The slippery Pete version used: https://www.amazon.com/gp/product/B0853CNLYZ/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&th=1
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    Top reviews from the United States

    Ezequiel
    5.0 out of 5 stars Good stuff
    Reviewed in the United States on March 6, 2024
    Size: 2Color: QuartVerified Purchase
    Used for 2017 Tundra. Works well and better priced than OEM. Do moderate amount of off roading, stuff is great.
    Helpful
     Report
    Dado Maker
    5.0 out of 5 stars Toyota 4Runner gears are happy again
    Reviewed in the United States on February 15, 2024
    Size: 1Color: QuartVerified Purchase
    For Pete's sake (slippery Pete that is) why can't the bottle makers be held to a standard for the sizing of the bottle openings. While the slippery Pete pump can still be used, it would be nice if I could have had a threaded option for stability. Other than that, the oil seems to lubricate the gears just fine...but time will tell.
    The slippery Pete version used: https://www.amazon.com/gp/product/B0853CNLYZ/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&th=1
    Customer image
    Dado Maker
    5.0 out of 5 stars Toyota 4Runner gears are happy again
    Reviewed in the United States on February 15, 2024
    For Pete's sake (slippery Pete that is) why can't the bottle makers be held to a standard for the sizing of the bottle openings. While the slippery Pete pump can still be used, it would be nice if I could have had a threaded option for stability. Other than that, the oil seems to lubricate the gears just fine...but time will tell.
    The slippery Pete version used: https://www.amazon.com/gp/product/B0853CNLYZ/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&th=1
    Images in this review
    Customer image Customer image
    Customer imageCustomer image
    Helpful
     Report
    Amazon Customer
    5.0 out of 5 stars Great product and value
    Reviewed in the United States on February 20, 2024
    Size: 6Color: QuartVerified Purchase
    Great product and offers long lasting lubrication for the price compared to Toyota's premium priced oil.
    Helpful
     Report
    Dude
    5.0 out of 5 stars Right stuff really slow delivery
    Reviewed in the United States on May 6, 2024
    Size: 1Color: GallonVerified Purchase
    Back in the days of pony express would have been ok…. Now way to slow…
    Helpful
     Report
    Gamer11
    5.0 out of 5 stars Smooth for FJ
    Reviewed in the United States on February 11, 2024
    Size: 1Color: GallonVerified Purchase
    What a difference it made on my 2014 FJ Cruiser! It was the first time changing the rear diff oil and I immediately noticed the smoother ride. I will definitely keep using redline going forward for all my gears.
    Helpful
     Report
    Chris Miller
    5.0 out of 5 stars Toyota
    Reviewed in the United States on April 23, 2023
    Size: 1Color: GallonVerified Purchase
    Cheaper than the box store. Had to order it at the auto parts store to why not order it at Amazon and have it shipped to the house. Works great on my 2012 toyota tacoma.
    2 people found this helpful
    Helpful
     Report
    Richard Bennett
    4.0 out of 5 stars No pump will fit the top
    Reviewed in the United States on March 28, 2024
    Size: 2Color: QuartVerified Purchase
    C'mon Redline, we can't standardize the tops to fit our pumps and from what I can tell there is no fluid pump out there that will fit your tops of these quart bottles. I managed to make my slippery Pete fluid pump work but I do find it a little annoying that the tops on your bottles are a smaller diameter.
    You got a good product here but standardize your quart bottles to fit these pumps or how bout an adapter.
    Good product but you lose a star for this.
    One person found this helpful
    Helpful
     Report
    Johvee Serrano
    5.0 out of 5 stars Red Line 50104 75W85 GL-5 Gear Oil, 1 Quart, 1
    Reviewed in the United States on January 7, 2024
    Size: 1Color: QuartVerified Purchase
    Great product, product is factory-manufacture approved and it’s full synthetic gear oil. This synthetic Gear oil is making a difference already in the differentials and transfer case. 2018 Toyota 4Runner SR5 Premium
    Helpful
     Report

    Top reviews from other countries

    dave
    5.0 out of 5 stars Great product/ideal volume
    Reviewed in Canada on April 21, 2024
    Size: 1Color: GallonVerified Purchase
    Great differential fluid for my 4runner
    Report
    WHO?
    5.0 out of 5 stars Mercedes differential fluid
    Reviewed in Canada on March 17, 2024
    Size: 1Color: QuartVerified Purchase
    This is the correct weight oil for Mercedes differential. I used this since 90k on my car ,now at 223k and going strong,no noise from the diff
    Report
    Kelly
    5.0 out of 5 stars Good replacement
    Reviewed in Canada on February 16, 2024
    Size: 2Color: QuartVerified Purchase
    Used as a replacement in a 2021 Toyota Hylander xle rear diff and transfer case 75W85 GL5. Toyota Canada charges $90.00 plus tax for the Toyota brand one litre and of course you require another 100 to 200 ml more. I got 2 one litre bottles of the red lion for a bit less than 1 litre of the Toyota brand.
    Report
    jonathan
    5.0 out of 5 stars Rear diff oil
    Reviewed in the United Kingdom on October 10, 2022
    Size: 1Color: QuartVerified Purchase
    I chose red line as it has the friction modifier already added which was perfect for my Mk3 focus rs. Great product Great delivery time.
    Very Happy 👌🏻😎🤪
    Report
    Amazon Customer
    5.0 out of 5 stars Great product excellent value
    Reviewed in Canada on March 2, 2024
    Size: 1Color: QuartVerified Purchase
    Replaced front and rear Differential fluid on 2011 Dodge Durango at 1/3 of Mopar part cost.
    Report