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โ๏ธ Shift smoother, drive smarter โ the gear oil pros swear by!
Red Line 50604 MT-LV is a premium full synthetic gear oil designed for manual transmissions and transaxles, offering superior protection with 70W/75W viscosity. It ensures quicker, notch-free shifting even in cold conditions, while being safe for brass synchros by eliminating harmful reactive sulfurs. Trusted by top automotive brands and backed by decades of performance, this 1-quart bottle delivers reliable, long-lasting transmission care for discerning drivers.






| ASIN | B07V1VW32J |
| Best Sellers Rank | #6,466 in Automotive ( See Top 100 in Automotive ) #13 in Gear Oils |
| Brand | Red Line |
| Brand Name | Red Line |
| Container Type | Bottle |
| Customer Reviews | 4.7 out of 5 stars 484 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) |
| Model Number | 50604 |
| Number of Items | 1 |
| Package Information | Bottle |
| Part Number | 50604 |
| 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.
M**E
Good product
I purchased this for the transfer case in my 23 Tacoma. I got tired of the dealers high prices & Redline is one of the best product around. Shipping was quick & price was right.
J**S
Modern diff oil
Not cheap, but good quality oil.
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**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**T
works as described
good product
P**6
Use this over the other major brand transfer case oils
Quality lube, need to buy two for the 3rd gen tacoma. Wish it came in a squeeze bottle, but will take the OEM spec oil and fill with a syringe than use the other major brands that might not meet Toyota specs.
B**V
2015 VW TDI
used on my 2015 VW TDI, 80k mile transmission oil change. shifter feels and working great.
D**D
Great product - good delivery
On time and as described
V**V
THIS IS A MUST IF YOU HAVE A DCT!!!!
This product is a must. Changed my DCT fluid at 63k km and it now feels like a new car. I wish I had some this flush when I was at 30k km. No slips while driving car is super smooth I don't hear my gears engaging or stressing while I'm in bumper-to-bumper traffic. Anyone with a DCT knows how it is while stuck in traffic!
A**R
Came as advertised
Came on time working great
R**G
Perfect substitute for Toyota transfer cases.
Great quality product. I used on my 4Runner and Tacoma transfer cases, perfect substitute for oem stupid expensive fluid. 100k+ km with zero issues.
D**N
happy to get this gear oil that I couldn't find anywhere in my city
Exactly what I need for my 2018 manual transmission Tacoma. The dealership was trying to sell me these for $100 per quart.
Trustpilot
2 days ago
2 weeks ago