- Performance Parts
- Universal Parts
- Fluids
Product Description
Red Line Gear Oils and Transmission Lubricants are designed to provide excellent low-temperature shiftability and improved gear protection at higher temperatures. Red Line Gear Oils will reduce differential temperatures 10-70F. Efficiency improvements between 1-5% are typical.
The synthetic base stocks used have tremendous thermal stability and provide the best film strength available. The unique combination of base stocks and additives allow Red Line gear and transmission oils to carry higher loads compared to petroleum lubricants. The stability of these products allow them to be used for extended periods.
Red Line MT-85 is a GL-4 gear oil, safe for brass synchros as it lacks the reactive sulfurs found in most GL-5 oils that cause damage. This is the oil of choice for 300ZX, 350Z, 370Z, G35, G37, and other Nissan manual transmissions.
- Recommended for Nissan 350Z and 370Z (also most Maxima, Altima & Sentra),
- Safe for brass synchros, as it lacks the reactive sulfurs found in most GL-5 oils that cause damage
- Offers quicker shifts, perfect synchronizer coefficient of friction
- Eliminates notchy shifting, even when cold
- 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
- Satisifies the gear oil viscosity requirements of 75W, 80W, 85W and motor oil viscosities of SAE 30 and 5W30
Sold Individually Per Quart
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Red Line 75W90 Differential Fluid - 1qt
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$23.53
Motul RBF 600 Brake Fluid
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OEM Nissan Power Steering Fluid
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$4.20
OEM Long Life Blue Coolant (Antifreeze) - 50/50 Pre-Mixed
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$15.72
OEM Clutch Pressure Plate Bolt Washer
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$2.45
Motul 5.1 Performance Brake Fluid
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Will this work with G37S 6MT trans?
Yes this is our most popular oil for this application. 3 quarts is how much you will need to perform the service.
How many quarts are needed for 2005 350z?
3 Qts for any 350Z or G35.
How many quarts are needed for 300zx TT (MT)?
For standard drain and fill service you will need 3 bottles, you should have a little left.
Nissan Matic-S Automatic Transmission Fluid (ATF)
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$9.19
OEM Long Life Blue Coolant (Antifreeze) - 50/50 Pre-Mixed
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$15.72
OEM Nissan Power Steering Fluid
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$4.20
Nissan Manual Transmission Fluid (MTF)
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$13.55
Motul 5.1 Performance Brake Fluid
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$10.16
Red Line MT-90 GL-4 Manual Transmission Fluid - 1qt
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$23.10
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Brian
February 16, 2024
completely resolved my downshifts and engagement into first when it warms up. it's a new transmission basically lol very pleased the outcome was just a simple fluid change
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ELLIOT
January 14, 2024
Works great. Redline has always been a favorite.
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Marco
April 30, 2023
This oil does miracles! My car used to have issues going into 3rd and 5th without grinding. Within 50 miles of using this amazing oil I noticed a very big difference, my 3rd gear grind is pretty much gone and my 5th gear grind is wayy better, I feel way safer now that I know my transmission has a better bill of life. 10/10 recommend
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John
March 12, 2023
Just changed out the fluid recently during CSC elimination kit install. I think it would be good to also offer a fluid transfer pump as an also purchased item to make it a one stop shopping experience.
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Gus
March 7, 2023
Not sure what fluid was in my trans but I swapped it out for this and noticed a smoother shift instantly.
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Jeffrey
June 20, 2022
Before using this in my 350z, getting into first was really difficult without jamming it in. It would take either rolling forward a foot or two or just going into a different gear then back into first. Now it feels like a new transmission with perfect syncros. Literally butter. Feels so good to not put pressure on the gears just trying to shift normally. Worth it 100%
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Shaun
June 5, 2022
Wonderful product no complaints.
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Joshua
March 16, 2022
Great trans fluid, smooth
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Caleb
October 13, 2021
makes shifts smoother and less notchy would recommend
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Leonardo
June 25, 2021
Definitely saw an improvement in the shifting especially when cold.
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Kenny
June 19, 2021
Hey guys,
Just wanted to let you know that i did use the gear oil for my transmission and so far, so good. Thanks for another great product and for your great customer service.
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Jarrett
April 10, 2021
Really helped with notchy shifting when cold, and shifts feel much smoother overall
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Davis
February 9, 2021
A bit pricey but love redline fluids only the best for my race cars
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Kedrick
January 26, 2021
Worked well, shifts smoother in cold weather. liked the free stickers also
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Tyler
February 24, 2018
I didn't buy this through Z1 but I swapped from the Motul because of poor shifting. I won't use anything but this in the Z now. It was immediately better, especially when cold when compared to the Motul.
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