






⚙️ Shift Smooth, Drive Confident: The Gear Oil of Champions
Red Line 50604 MT-LV is a premium full synthetic gear oil designed for manual transmissions and transaxles. With a unique 70W/75W viscosity and a formula free of reactive sulfurs, it ensures longer synchro life, smoother shifting even in cold conditions, and broad compatibility with GL-1 to GL-4 applications. Trusted by top automotive brands and backed by decades of performance, it’s the go-to lubricant for professionals demanding reliability and precision.






| ASIN | B07V1VW32J |
| Best Sellers Rank | #4,970 in Automotive ( See Top 100 in Automotive ) #8 in Gear Oils |
| Brand | Red Line |
| Brand Name | Red Line |
| Container Type | Bottle |
| Customer Reviews | 4.8 out of 5 stars 430 Reviews |
| Included Components | Red Line 50604 Mt-Lv 70W/75W Gl-4 - Quart |
| Item Form | Oil |
| Liquid Volume | 32 Fluid Ounces |
| Manufacturer | Red Line |
| Material | Polyalphaolefin (PAO) |
| Package Information | Bottle |
| Recommended Uses For Product | Vehicle |
| Specific Uses For Product | Vehicle |
| UPC | 083522506045 |
| Unit Count | 32 Fluid Ounces |
G**Z
The Best MT Fluid
The best of the best. This Manual Transmission fluid that the service manual calls for on my 2013 Scion TC is the only one that meets or exceeds manufacturer specifications. I have used other brands and they always make it hard to shift after a cold start. With this fluid even in a cold start the transmission feels smooth as butter and makes it harder to miss-shift. I have been using this on my car for the past 5 years and have had no issues.
A**Y
I filled it into my transfer case and the jerking is gone
I was looking for a high quality oil for a long time, not mass market. I filled it into my transfer case and the jerking is gone. Everything works great now.
S**S
Great price good quality
Used on 2018 Toyota Tacoma great quality
S**R
Great oil!
A perfect replacement in my 2022 Toyota Tacoma , no problems at all!
W**9
Best price
Best price I could find on internet. As good as Toyota brand transfer case fluid, at much less price.
R**R
Meets Toyota TC case fluid specifications
I changed my transfer case fluid This fluid meets the exact Toyota spec for TC fluid for a 2023 Tacoma V6 4WD High quality fluid Engages 4WD smoothly and faster
D**Y
Hard to find, not cheap well worth it!
Red line is the only ones, that on their website, they state their product, this product, works properly for the Hyundai 7 speed DCT. I haven't had the time to try it yet. 2/8/26 I drained for about 1/2 hour the old Hyundai fluid out of the lower bolt then replaced it on the transmission and put in 2.1 quarts, just so a just a little seeped out, of the side check/fill hole my 2021 Kona Limited with 38,000 miles replaced. And it works superb now it shifts like it should, like my wifes 2020 Kona Ultimate 24,000 miles, smooth and firm. I am quite relieved and happy so far.
A**R
Does the job
From what I can tell this is the correct lubricant and it is a direct replacement equivalent for the Toyota differentials and Transmissions. Toyota wants triple the price and from what I have seen this product meets or exceeds all specifications so you might as well use it I did and I have no problems