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Red Line

Red Line 50205 SAE 75W80 API GL-4 Manual Transmission and Transaxle Lubricant (MTL) Car Gear Oil - 1 Gallon (4 Pack)

  • Based on 561 reviews
Condition: New
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$344.28 Why this price?

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Availability: Only 3 left in stock, order soon!
Fulfilled by PStuning
Arrives Wednesday, Jul 23
Order within 2 hours and 33 minutes
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Size: 1 Gallon (128 Ounces), (Pack of 4)


Features

  • HIGH PERFORMANCE - Gear protection and longer synchro life. Recommended for GL-1, GL-3, and GL-4 applications, as well as where most special synchromesh fluids are specified
  • OFFERS QUICKER SHIFTS - MLT Gear Oil with balanced friction control for most manual transmission synchronizers. Other synthetic gear oils are often too slippery
  • SAFE FOR BRASS SYNCHROS - GL-4 Gear Oil lacks the reactive sulfurs found in most GL-5 oils that cause damage. Recommended for GL-1, GL-3 & GL-4 applications
  • POPULAR MOTOR OIL FOR - BMW, Honda/Acura, Ford Focus, late-model Mini Cooper, Land Rover/Range Rover LT77S, Mitsubishi, Dodge & Jeep NV1500, NV3500, NV3550 & NV5600 truck transmissions
  • WHY RED LINE - Established in 1979, Red Line Products perform & protect better than any on the market. No compromises

Brand: Red Line


Liquid Volume: 512 Fluid Ounces


Item Weight: 10 Pounds


Specific Uses For Product: Manual transmissions and transaxles for specific vehicle models, including BMW, Honda, Ford Focus, Mini Cooper, Land Rover/Range Rover, Dodge & Jeep NV1500, NV3500, NV3550 and NV5600 truck transmissions, and as a replacement for GM Synchromesh, Auto-Trak II, and Chrysler spec MS-9224. See more


Item Form: Oil


Brand: ‎Red Line


Liquid Volume: ‎512 Fluid Ounces


Item Weight: ‎10 Pounds


Specific Uses For Product: ‎Manual transmissions and transaxles for specific vehicle models, including BMW, Honda, Ford Focus, Mini Cooper, Land Rover/Range Rover, Dodge & Jeep NV1500, NV3500, NV3550 and NV5600 truck transmissions, and as a replacement for GM Synchromesh, Auto-Trak II, and Chrysler spec MS-9224.


Item Form: ‎Oil


Global Trade Identification Number: ‎52


Manufacturer: ‎Red Line


Unit Count: ‎512.0 Fluid Ounces


UPC: ‎083522502252


Number of Items: ‎1


Item Weight: ‎10 pounds


Package Dimensions: ‎14.4 x 12.7 x 9.75 inches


Item model number: ‎50225


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎50225


Date First Available: July 6, 2007


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jul 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Very good manual transmission fluid
Size: 1 Gallon (128 Ounces)
Really like this 75w80 GL-4 MTF from Redline. Works better in my Honda/Acura than Torco MTF. The Torco fluid is really good stuff (I think better) but I picked up a vibration out of 2nd gear, perhaps it was just too slick for the differential or other MT components. This Redline 75w80 GL-4 MTF is of a lower viscosity than the Torco and seems pretty comparable (only in viscosity) to the Honda HG MTF which sounded horrible in my car and wasn't very smooth. My service manual originally recommended 10w-30 motor oil for the MT but then Honda came out with the MTF HG stuff which I tried and immediately switched it out. This Redline is really good stuff and is in the high quality category of Torco, Motul, Mobile One, Amsoil. It's really good, but generally there are certain lubricants that will work better in your car or motorcycle than others. You just have to try them out and unfortunately that can get pretty expensive, since this gallon option was basically $15.60 a quart. Do the research and limit your selections. Since the manual recommends 30k transmission oil changes, this long interval would justify the higher price per quart. ... show more
Reviewed in the United States on March 26, 2019 by F1/MotoGP Yank
    • Works with my 30+ year old manual transmission
Size: 1 Gallon (128 Ounces)
I traipsed around the Internet for a bit looking for a solid transmission fluid. I had used Redline in the past but it had been a couple of decades. At 50k miles I decided a change was in order and this MTL fluid shifts quick and quietly. I have no noises from the gearbox that I had before.
Reviewed in the United States on April 29, 2024 by Devin
    • The best manual transmission fluid that I have used.
Size: 1 Gallon (128 Ounces)
My transaxle shifted much more smoothly after I switched to this transmission fluid. The synchros also seemed to respond quicker.
Reviewed in the United States on October 9, 2024 by dlubin
    • Great oil!
Size: 1 Gallon (128 Ounces)
Great oil! Great temps!
Reviewed in the United States on September 12, 2024 by John G
    • Great fluid
Size: 1 Gallon (128 Ounces)
Transmission shifts smoothly
Reviewed in the United States on October 28, 2024 by Brad C.
    • Worked for an AX15 5-Speed
Size: 1 Gallon (128 Ounces)
Noticeable improvement with this transmission fluid.
Reviewed in the United States on March 13, 2025 by Agent Smith
    • SM420
Size: 1 Gallon (128 Ounces)
I put this in a SM420 manual trans, it does shift a little better, and also cut down on some of the whining, I guess it was worth the $68.00, I would buy it again if they drop the price to $58.00
Reviewed in the United States on February 14, 2022 by Amazon Customer
    • Cured serious shifting issues in my Mazdaspeed3
Size: 1 Gallon (128 Ounces)
Review Image by Customer Customer
(PLEASE NOTE: old oil shown in photo is the old genuine Mazda fluid! It is NOT used Redline oil.) I used it in my 2010 Mazdaspeed3 with around 75,000 original miles. I changed it myself, shops in the area didn't want to bother with it. The original trans oil had never been changed (quite simply because, Mazda claims the original factory fluid is a "lifetime" fluid, which it is obviously NOT), and came out of the car looking dark as cocacola, and thick as (real) maple syrup. Whereas this new liquid is transparent, with the slightest hint of red, and flows quite a bit easier than the old, nasty black fluid. Before I changed it, I was having serious issues getting stuck shifting into 1st and 2nd (the shifter often wouldn't want to move all the way into gear). It was so bad that I was considering getting rid of the car. But this new oil fixed it 100%. With the old oil I also had an issue with 2nd gear going in with a crunch (worn synchro probably?), this oil didn't completely eliminate that crunch but it reduced it a lot, and now it goes away completely when the car is fully warmed up. I still can't believe Mazda doesn't have a service interval for changing the transmission fluid in the speed3. This fluid absolutely needs to be changed. As for how to change it in the Mazdaspeed3: https://www.youtube.com/watch?v=yWMk_Q1pE8c Tip: If you can manage to find a funnel long enough, or extend the one you have, then you won't need to remove the airbox. I extended mine with a plastic water hose. ... show more
Reviewed in the United States on February 18, 2018 by Customer Customer

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