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 |
Other Sellers on Amazon
98% positive over last 12 months
66% positive over last 12 months
Red Line 50305, MT-90 75W-90 GL-4, Synthetic Gear Oil for Manual Transmission and Transaxles - 1 Gallon
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!
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
Similar items that may deliver to you quickly
- Red Line Oil 75W90 Gear Oil- Pack of 4 QuartsAmazon's Choicein Gear OilsFREE Shipping by AmazonGet it as soon as Tuesday, Apr 2
- Red Line 57905 75W90 Fully Synthetic GL-5 Gear Oil - GallonFREE Shipping by AmazonGet it as soon as Tuesday, Apr 2
- Red Line 50304, MT-90 75W-90 GL-4, Synthetic Gear Oil for Manual Transmission and Transaxles, Safe for Brass Synchros, Eliminates Notchy Shifting, Even When Cold - 2 QuartAmazon's Choicein Transmission FluidsFREE Shipping by AmazonGet it as soon as Tuesday, Apr 2Only 7 left in stock - order soon.
- Red Line 50304, MT-90 75W-90 GL-4, Synthetic Gear Oil for Manual Transmission and Transaxles - 4 QuartFREE Shipping by AmazonGet it as soon as Tuesday, Apr 2
- Red Line MT-85 75W85 GL-4 Manual Transmission Lubricant (Pack of 2)FREE Shipping by AmazonGet it as soon as Tuesday, Apr 2Only 12 left in stock - order soon.
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 | #16,335 in Automotive (See Top 100 in Automotive) #30 in Gear Oils |
Date First Available | July 3, 2012 |
Warranty & Support
Feedback
What's in the box
Compare with similar items
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 | |
Try again! Added to Cart Add to Cart | Try again! Added to Cart Add to Cart | Try again! Added to Cart Add to Cart | Try again! Added to Cart Add to Cart | Try again! Added to Cart Add to Cart | Try again! Added to Cart Add to Cart | |
Price | $90.60$90.60 | $63.92$63.92 | -15% $39.99$39.99 List: $47.06 | $12.49$12.49 | $40.99$40.99 | -13% $40.37$40.37 List: $46.20 |
Delivery | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 |
Customer Ratings | ||||||
Value for money | — | 4.6 | 4.7 | 4.7 | 4.7 | 4.7 |
Mileage | — | 4.8 | — | 4.8 | 5.0 | 4.8 |
Light weight | — | — | 4.6 | — | 4.2 | 4.7 |
Sold By | R/A Hoerr Incorporated | R/A Hoerr Incorporated | R/A Hoerr Incorporated | Amazon.com | R/A Hoerr Incorporated | Edo Performance |
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 | — | 2 pounds | — | 1.99 pounds |
Looking for specific info?
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, gear oil and smoothness of shifting of the machine lubricant. They mention that it works well, has no issues and that it shifts like a hot knife through butter. They are also satisfied with noise. However, some customers have different opinions on grinding, and value.
AI-generated from the text of customer reviews
Customers say the machine lubricant improves the smoothness of shifting. They mention that it works great for their Mazda 3, and the transmission shifts smoother and quieter. Customers also say that it makes shifting a breeze, and the gears feel smoother.
"...The fluid held up fantastically, and always shifted smooth and accurately...." Read more
"...Awesome and it's shifting very well..." Read more
"...Quieted it right down, and now instead of a choppy shift it's smooth as silk. I still don't believe it...." Read more
"...What I know for sure is my shifting problems went away, and I enjoy rowing gears more than ever!" Read more
Customers are satisfied with the quality of the lubricant. They mention that it works well and shifts smoothly. Some say that it provides superior performance in manual transmission applications. Overall, most are happy with their purchase and recommend it to others.
"...The fluid held up fantastically, and always shifted smooth and accurately...." 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
"...The Red Line MT-LV is significantly more stable, being only five points thinner than this MT-90 when hot, and matching the hot thickness of this..." Read more
Customers are satisfied with the oil. They mention that it is the best manual transmission oil money can buy, it is great gear oil for a transmission that needs GL-4 lube, and it is excellent for older transmissions and transmissions that have soft metals. Some say that the oil is good enough and that it stands the test of time as one of the best.
"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
"...Red line has truly stood the test of time as one of the best manual transmission fluids." 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
Customers like the noise of the lubricant. They say it makes the gears quieter and easier to shift. Some say that it completely silences their shifts and makes them smoother. Overall, customers are satisfied with the noise level of the product.
"...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 mixed about the value of the machine lubricant. Some mention it's great value, the best manual transmission fluid at any price, and well worth it. However, others say that it'd be better off with another product.
"...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
Customers are mixed about the grinding with some saying it's easier to shift and there's no more grinding going into any gears, while others say that 3rd gear was grinding badly, especially when downshifting. However, the grinding stopped after a few miles.
"...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
"Top shelf product. Used on a manual trans 2007 Scion tC. 3rd gear was grinding badly, especially when downshifting..." 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
"...Much less gear noise, easier to shift and no more grinding going into any gears!" Read more
Reviews with images
-
Top reviews
Top reviews from the United States
There was a problem filtering reviews right now. Please try again later.
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.
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.
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.
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!
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.