⚙️ Shift smarter, not harder — the lubricant your manual transmission deserves!
Red Line 50304 MT-90 is a premium 75W-90 GL-4 manual transmission lubricant designed to deliver smooth, precise shifting and robust gear protection. Engineered for manual transmissions and transaxles, it excels in high-temperature environments up to 300°F and ensures optimal synchronizer friction for effortless gear engagement. Trusted by enthusiasts and professionals alike, this 2-pack offers 64 fluid ounces of high-performance gear oil that eliminates gear noise and enhances transmission longevity.
| Asin | B00NT5V8RW |
| Best Sellers Rank | #23,354 in Automotive (See Top 100 in Automotive) #374 in Automotive Oils |
| Brand Name | Red Line |
| Container Type | Bottle |
| Customer Reviews | 4.9 4.9 out of 5 stars (603) 4.9 out of 5 stars |
| Item Form | Oil |
| Item Weight | 903 g |
| Liquid Volume | 64 Fluid Ounces |
| Manufacturer | Red Line |
| Model Number | 50304 |
| Number Of Items | 1 |
| Number Of Packs | 2 |
| Part Number | 50304 |
| Recommended Uses For Product | Gear Oil |
| Sae J300 Viscosity Grade | 75W-90 |
| Specific Uses For Product | Manual transmissions and transaxles, GL-1, GL-3, and GL-4 applications |
| Unit Count | 64 Fluid Ounces |
| Upc | 737534816592 |
| Upper Temperature Rating | 300 Degrees Fahrenheit |
| Viscosity | 75W90 |
User
Scion grinding in 2nd or 3rd? This is what you need!
Wow, I am shocked!So I've been dealing with my gears grinding in 2nd and 3rd for the past 1 1/2 Years in my manual 2005 Scion XA the car has had the problem since before i bought it, The previous owners replaced the clutch, And I'm assuming that someone had added extra gear oil, Because it spilled out when i took off the fill cap on ramps, I've been trying to figure out the grinding, For the past 2 years doing everything but trying to put a new clutch in, Previous owners also stated that the mechanic may have put the clutch in wrong, I guess he didn't, Because this nearly completely fixed the issue in under 200 miles of driving, Driving has also become much smoother, If you have a Scion XA i suggest changing to this oil regardless if your gears are grinding!You only need exactly 2 quarts for the Scion XA no more no less, I wish all m mechanics would look this up before adding too much oil!I found this out from reading forms on the Scion XA, Everyone suggested this oil for the grinding and regardless! So i hope someone sees it here!
User
It's worth the money.
Replaced the fluid on a 99 Tacoma I just picked up. The shifting was notchy and you had to count to 4 before you could put it in 3rd gear. The old fluid looked 100% when I dropped it and my heart sank. I thought new fluid would not make a difference. I was wrong. The shifts were silky smooth and you could feel the difference right away. 3rd gear acted like it should and no more grinding. I'm not sure why Red Line is so much better, but if you are not using it...sucks to be you.
User
Seems to be a very good oem alternate
My 2007 Corolla 5 speed always had a “notchy” first gear engagement when coming to a stop and this was immediately gone when switching to this fluid. Keep in mind when i drained my transmission the old fluid smelled like it was at the end of its life and i have no idea which fluid was in it before as I’ve only put about 15k miles on the car in over a year and a half. Overall I’m very happy with this fluid and it seemed to make shifting overall more smooth. Would recommend
User
Works well
Works well on a 1983 VW Scirocco .
User
Awesome for Jeeps
If you have a Jeep with a manual transmission you need this product
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