

⚙️ Shift smarter, not harder — gear oil that keeps you ahead of the pack!
Red Line 50504 MT-85 is a premium 75W85 GL-4 manual transmission gear oil designed for superior gear and synchro protection. It ensures quicker, smoother shifts with balanced friction control, especially in cold climates, while being safe for brass synchros. Compatible with a wide range of performance and everyday manual transmissions, this oil delivers trusted, long-lasting performance backed by Red Line’s decades of expertise.













































| ASIN | B004D4URV6 |
| Best Sellers Rank | #36,788 in Automotive ( See Top 100 in Automotive ) #499 in Automotive Oils |
| Item model number | RED50504 |
| Manufacturer | Red Line |
| Product Dimensions | 33.02 x 15.24 x 15.24 cm; 884.51 g |
G**A
Great product! Worth the money!
Product exactly as described...great product A++
A**L
Worked well in our 08 Nissan Frontier 6 Speed Manual. Smooth shifting and GL4 spec to protect the syncro rings.
M**N
Mein Getriebe (Opel Corsa D) ließ sich gerade im ersten Gang nur mäßig schalten. Die Schaltbarkeit hat sich nach dem Wechsel wesentlich verbessert. Auch die Geräuschkulisse ist deutlich ruhiger. Klare Empfehlung 👍🏻
N**L
Ok.
D**W
Pretty smooth shifting
オ**ジ
シフトフィーリングが改善されました、この数年RED LINEを使用しています。
Trustpilot
2 weeks ago
3 weeks ago