

⚙️ Shift smoother, protect harder — never settle for less.
Red Line 50304 MT-90 is a premium 75W-90 GL-4 manual transmission lubricant designed for superior gear and synchronizer protection. Its unique formula ensures effortless, notchy-free shifting even in cold conditions, while being safe for brass synchros. Trusted by professionals since 1979, this lubricant enhances transmission longevity and performance for manual transmissions and transaxles requiring GL-1, GL-3, or GL-4 oils.






| ASIN | B000QFN326 |
| Best Sellers Rank | #15,991 in Automotive ( See Top 100 in Automotive ) #18 in Automotive Transmission Fluids |
| Brand | Red Line |
| Customer Reviews | 4.8 4.8 out of 5 stars (2,799) |
| Date First Available | 1 May 2024 |
| Item Weight | 907 g |
| Item model number | 50304 |
| Manufacturer | RED LINE |
| Manufacturer Part Number | 50304 |
| Model | (1063017) MT-90 75W90 GL-4 - QUART |
| Product Dimensions | 10.16 x 10.16 x 22.86 cm; 907.18 g |
| Viscosity | 75W-90 |
L**N
well, not much to say as i feel it smoother on shifting. only downside is the bottle opening. can't really find a right pump for it. i end up just cutting it down to the first top and was able to use a pump that i had. it didn't screw on so i just had to be extra careful not to tip it over. used it in a 2007 carolla s manual transmission that had about 132k miles on it. looks like previous owner never changed it.
M**L
Changed out the gl-5 transmission oil that was in my 2006 tacoma to this oil. With the old oil the truck shifted rough and slow, would grind into 3rd gear every shift, felt like a worn synchro. With this new oil the shifts are smooth and it just pops right into the gear. 3rd Gear goes in perfectly 95% of the time, sometimes get some feedback of the synchro when I put it in but its minor compared to before. Would Recommend it for any vehichle especially with brass synchros, but if your owners manual says gl-5 only stick to that. Great oil just pricey might be possible to find it locally for cheaper.
M**S
Viskas gerai.
A**A
Used it in my safari dicor. Awesome performance. but the price is on higher side.
P**K
Ottimo lubrificante, il cambio ora é fluido e non si impunta piu.
Trustpilot
1 month ago
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