Material | Synthetic |
---|---|
Brand | Red Line |
Liquid Volume | 128 Fluid Ounces |
Item Weight | 2.27 Kilograms |
Recommended Uses For Product | Lube |
Item Form | Fluids,Liquid,Oil |
Manufacturer | Red Line |
Model | 50305 |
Item Weight | 4.99 pounds |
Product Dimensions | 7.5 x 4 x 11.25 inches |
Country of Origin | USA |
Item model number | 50305 |
Is Discontinued By Manufacturer | No |
Manufacturer Part Number | 50305 |
OEM Part Number | 50305 |
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98% positive over last 12 months
98% positive over last 12 months
Red Line 50305, MT-90 75W-90 GL-4, Synthetic Gear Oil for Manual Transmission and Transaxles - 1 Gallon
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Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
- Select the return method
- Ship it!
Purchase options and add-ons
Material | Synthetic |
Brand | Red Line |
Liquid Volume | 128 Fluid Ounces |
Item Weight | 2.27 Kilograms |
Recommended Uses For Product | Lube |
About this item
- Provides High performance gear protection and longer synchro life
- Offers quicker shifts, perfect synchronizer coefficient of friction and eliminates notchy shifting, even when cold
- Recommended for GL-1, GL-3 and GL-4 applications, as well as where most special synchromesh fluids are specified. Safe for brass synchros, as it lacks the reactive sulfurs found in most GL-5 oils that cause damage
- Satisfies gear oil viscosity requirements of 75W; 80W; SAE 40 10W40 and 15W40 motor oil
- Excellent for high- and low-mile transmissions and compatible with petroleums and other synthetics
Frequently bought together
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This Item Red Line 50305, MT-90 75W-90 GL-4, Synthetic Gear Oil for Manual Transmission and Transaxles - 1 Gallon | Recommendations | dummy | dummy | dummy | dummy | |
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Price | $90.60$90.60 | $63.92$63.92 | $62.95$62.95 | -15% $39.99$39.99 List: $47.06 | -7% $10.23$10.23 List: $10.99 | -11% $40.99$40.99 List: $46.20 |
Delivery | Get it as soon as Wednesday, Mar 20 | Get it as soon as Wednesday, Mar 20 | Get it as soon as Wednesday, Mar 20 | Get it as soon as Wednesday, Mar 20 | Get it as soon as Wednesday, Mar 20 | Get it as soon as Wednesday, Mar 20 |
Customer Ratings | ||||||
Value for money | — | 4.6 | — | 4.7 | 4.7 | 4.6 |
Mileage | — | 4.8 | — | — | 4.8 | 4.7 |
Sold By | R/A Hoerr Incorporated | R/A Hoerr Incorporated | e autoaccessories | R/A Hoerr Incorporated | Amazon.com | R/A Hoerr Incorporated |
liquid volume | 128 fluid ounces | 1 gallons | 1 quarts | 1 quarts | 1 quarts | 64 fluid ounces |
form | Fluids,Liquid,Oil | Liquid | Oil | Oil | Oil | Oil |
weight | 2.27 kilograms | 7 pounds | 6 pounds | — | 2 pounds | 1.99 pounds |
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From the brand
Product Description
Red Line MT-90 Manual Transmission Lubricant A 75W90 GL-4 gear oil (SAE 10W/15W/40 engine oil viscosity) designed for use in manual transmissions and transaxles. Red Line MT-90 Manual Transmission Lubricant provides excellent protection of gears and synchronizers and its balanced slipperiness provides a perfect coefficient of friction, allowing easier shifting. Red Line MTL / MT-90 BENEFIT SUMMARY * Eliminates notchy shifting * Designed for manual transmissions and transaxles * Perfect synchronizer coefficient of friction * Enables high-speed downshifting * Excellent shifting even when cold * Eliminates gear whine and rattle at high temperatures * High-performance gear protection * Non-corrosive toward synchronizers * Satisfies manual transmissions and transaxles requiring motor oils or GL-1, GL-3, or GL-4 gear oils.
Product information
Technical Details
Additional Information
ASIN | B002INX20C |
---|---|
Customer Reviews |
4.8 out of 5 stars |
Best Sellers Rank | #16,250 in Automotive (See Top 100 in Automotive) #27 in Gear Oils |
Date First Available | July 3, 2012 |
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Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the quality, noise level, and shifting of the machine lubricant. For example, they mention that it works nicely in the transfer case, and that the gear shifter just glides into gear now. Customers are also satisfied with the oil. That said, opinions are mixed on value.
AI-generated from the text of customer reviews
Customers are satisfied with the smoother shifting with the machine lubricant. They mention that all gear changes are smoother, and the transmission shifts smoother. The gear shifter just glides into gear now, and customers are impressed with the crisp shifts.
"...The fluid held up fantastically, and always shifted smooth and accurately...." Read more
"...Awesome and it's shifting very well..." Read more
"...What I know for sure is my shifting problems went away, and I enjoy rowing gears more than ever!" Read more
"...Additionally, the shifter feels less notchy and more smooth, the car appears to have gained another 1mpg, while gear whine sounds the same as it..." Read more
Customers are satisfied with the quality of the machine lubricant. They mention that it works great for their purposes, and they will be purchasing it again when it comes time to do so. Some say that it runs great and has no issues at all. Overall, customers are happy with their purchase and recommend it to others.
"...I accidentally shift a bit too quickly, because there's absolutely no grind at all anymore!My TJ isn't a pavement princess...." Read more
"worked very smooth on my 06 toyota tacoma 4WD manual transmission. Awesome and it's shifting very well..." Read more
"...Very good reputation." Read more
"...Once warmed up, 5th gear wouldn't grind anymore, and 3rd gear would only grind if the driver shoved the handle quickly, although the shifter still..." Read more
Customers like the oil. They mention it's a great gear oil, one of the best oils for manual transmissions, and perfect for brass syncs. They also use it in their transfer case with no issues. Some customers also say it' s 'killer oil for Tacoma manuals'.
"This is without a doubt one of the best oils for manual transmissions. It is expensive but Amazon seems to have the best prices anyway...." Read more
"Redline gear oils are amazing, My 1986 Nissan 300zx shifts like new again!..." Read more
"...This is better than factory recommended lube, the manual transmissions are quiet and shift smoothly after using this.. if you have a Jeep YJ or TJ..." Read more
"Best gear oil on the market. Noticeably smoother operation." Read more
Customers like the noise of the machine lubricant. They mention that it makes gear shifts smoother, with less gear noise. They also appreciate the smooth and quiet operation.
"...TL;DR: If you like your manual transmission to shift like butter, quiet, and precise, buy this fluid." Read more
"...I should have done this immediately after the rebuild. Quieted it right down, and now instead of a choppy shift it's smooth as silk...." Read more
"...5th gear became massively more quiet. Gl-4, low sulfur for the brass syncronizers only is real. Redline is NOT snakeskin oil...." Read more
"...the redline worked best with my AX15 made transmission much quieter and smoother. will be buying again after another 30k miles" Read more
Customers are satisfied with the delivery of the machine lubricant. They mention that it was delivered quickly, for a great price, and that the transfer case barely sees any speed or wear even at the highest mphs. They also mention that the gear oil is the best on the market and that it provides a smoother operation.
"...And the transfer case barely sees any speed or wear even at the highest mphs. Thank god for brass.Drain bolts are 24mm...." Read more
"Quick delivery, I used this in my manual trans on 98 Cherokee Xj" Read more
"Great, fast delivery and service. Thanks" Read more
"Best gear oil on the market. Noticeably smoother operation." Read more
Customers are satisfied with the smoothness of the machine lubricant. They mention that it is buttery smooth, and their car feels amazing to drive with it. They also say that it will not effect clutch feel and that it's super slick.
"...Quieted it right down, and now instead of a choppy shift it's smooth as silk. I still don't believe it...." Read more
"...WAY smoother than before. I'm not sure what type of fluid was in my tranny before, but this is far superior...." Read more
"...Feels so much better and quieter running redline; (chatter instantly gone) that I replaced diff in my ford also and will only run redline from now..." Read more
"...Now it is just buttery smooth and I couldn't be happier. I use MT-90 in my 2006 Mini Cooper S with an LSD...." Read more
Customers find the machine lubricant easy to use. They mention it's smoother, easy to do in about 20 minutes, and easy for off-road vehicle maintenance. The 1 gallon jug makes it easy to connect a manual pump and spend just a few minutes.
"...It's easier than an oil change. No filter required. Fill ports offer idiot proof over/under filling assuming you're on level ground...." Read more
"With this 1gallon jug, you can easily connect a manual pump and spend just a few minutes putting all the gear oil you need into your transmission..." Read more
"...difference in how the shifting feels which is overall smoother and easier. I use it in my rock crawler and trust me...the oil gets a heavy workout!..." Read more
"...Used about 3 quarts to fill the Trans. Easy to do in about 20 min." Read more
Customers have mixed opinions about the value of the machine lubricant. Some mention that it's great value and well worth it for old or new manual transmission, while others say that it is expensive.
"...at more than twice the price of competing gear oil, I it's still worth every penny as far as I'm concerned. I'll never use anything else again." Read more
"...After swapping fluid for MT90 I can assure you the fluid is worth every penny...." Read more
"...It is expensive but Amazon seems to have the best prices anyway. Buying the gallon seems to be the most cost effective option...." Read more
"...its a but more expensive than the regular stuff but its more than worth the premium, 10/10 would buy again." Read more
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First was a heavily modified and tuned 2008 Cobalt SS turbo with the F35 trans. I tracked that car often, including high speed courses, autocross, and the drag strip. The fluid held up fantastically, and always shifted smooth and accurately. I also used the SSlowbalt for my commute at the time, which was 120 miles a day @80-85mph.
I have since (sadly) sold my SSlowbalt, and mostly drive my wife's previous (now mine) car, a moderately modified and tuned 2012 Cruze Eco with the M32 trans, that we bought brand new. I have used MT90 in that since the first trans fluid change at ~50k (150k miles at the time of writing this, was changed with the same fluid at 100k, and about to do a third change next week.)
This stuff shifts SO SMOOTH! I wasn't having issues in my Cruze before I swapped the fluid, but I did, and still notice, how much nicer the shifting feels compared to my buddy's 2012 Cruze ECO 6MT. This is 100% worth it. I have driven our Cruze to both US coasts, through 39 states, ontario, and numerous drives back home to Detroit from Lincoln, NE. I also use my Cruze for the occasional autocross event. Just all around smooth and quiet operation.
I also have this same fluid in my 1999 Jeep Wrangler TJ with 213k at the time of writing this.
The MT90 smoothed it out to the point where I was worried, because I was so used to that old AX15 shifting like a dump truck, or something haha. But not anymore! Totally smooth, no grinding on faster shifts (1-2 used to grind a bit if I didn't remember I was driving a brick and tried to shift it too fast). Now it doesn't matter if I accidentally shift a bit too quickly, because there's absolutely no grind at all anymore!
My TJ isn't a pavement princess. I use it for what it was made to do, and I use it a lot. That trans gets a regular workout. It has been about 15k miles since I swapped it.
TL;DR: If you like your manual transmission to shift like butter, quiet, and precise, buy this fluid.
In my case, my 80's Toyota would often refuse to go into first gear, or any gear when cold. It's pretty stressful sitting at a green light with a line of frustrated cars behind you, trying to coax the transmission into 1st. This happened at least a couple times per day. I'd learned to accept it. It is an old truck after all. But I figured I'd change the (probably original) transmission fluid and see if it made a difference.
Spoiler: It absoluley did. After a month, I've only had one reluctant shift into first since the fluid change. Starting cold, it has no issue going into reverse anymore. Its changed the way I drive. I can smoothly shift into gears that wouldve been off limits before due to speed difference. And, while I prefer to focus on the hard stats, I agree that, subjectively, it does "feel smoother"!
Maybe the old fluid was just too old, and any decent new fluid would do. Maybe it was previously too low due to a weeping shaft seal. But I'll give Redline the benefit of the doubt. What I know for sure is my shifting problems went away, and I enjoy rowing gears more than ever!
Shipped fast will buy again
I replaced the A & B shift solenoids, torque converter clutch modulator, 3-2 downshift solenoid, pressure regulator, filter and gasket. Also installed a evil energy 30row oil cooler to replace the stock GM transmission cooler. Haven't seen the fluid temp get above 150 degrees yet. It has only been two or three days thou so Time will tell.
I can't say that this will solve your whole world, and I have heard of people being less than impressed, especially for the much higher price tag. But for my part, this is great stuff. I don't know what kind of pixie dust they put in there, but at more than twice the price of competing gear oil, I it's still worth every penny as far as I'm concerned. I'll never use anything else again.
Top reviews from other countries
Is it because my transmissions gear oil just hasn't been changed in too long, or is it because this product actually is magic? I'm not sure to be honest, but I will for sure be buying the same thing again next time.
Bought for 1998 Jeep TJ and have a small amount left over which is also excellent.