

⚡ Shift into the fast lane with Red Line’s ultimate gear oil!
Red Line 75W85 GL-5 Full Synthetic Gear Oil is engineered with a high-performance polyol ester base and integrated friction modifiers to provide exceptional protection and efficiency for hypoid limited slip differentials. Its stable viscosity index and superior oxidation resistance ensure consistent lubrication across extreme temperatures, making it ideal for late-model vehicles and racing applications. Trusted by enthusiasts and professionals alike, this gear oil extends differential life and optimizes performance without the need for additional additives.






| ASIN | B000J3G8KE |
| Best Sellers Rank | 210,202 in Automotive ( See Top 100 in Automotive ) 337 in Gear Oils |
| Brand | Red Line |
| Customer Reviews | 4.8 4.8 out of 5 stars (862) |
| Date First Available | 13 Nov. 2012 |
| Item Weight | 907 g |
| Item model number | RED50104 |
| Manufacturer | Red Line |
| Manufacturer part number | 50104 |
| Model | 50104 |
| OEM Part Number | 50104 |
| Product Dimensions | 10.16 x 10.16 x 10.16 cm; 907.18 g |
| Viscosity | Lightweight |
J**N
Rear diff oil
I chose red line as it has the friction modifier already added which was perfect for my Mk3 focus rs. Great product Great delivery time. Very Happy 👌🏻😎🤪
G**G
Good staff
Really good alternative for bmw oil
A**R
Good quality
Good quality product, fast and efficient service.
W**L
it works on my bmw
always use genuine oil but want to try this one, do lots of research from internet and lots people use red line which is much cheap but works fine, I did change my oil last month and driving lots of miles now, it works as it should, nothing different with genuine oil.if you don't want cost too much money , this is your choice.
A**E
Meiner Meinung nach das Beste Getriebe öl sehe hohe Laufruhe keine Geräusche und optimale Schmierung. optimal für Toyota Geländewagen 4 Runner und Land Cruiser
P**.
Everything as advertised.
A**X
Ram 5500, 2022 front and rear axle oil, meets oe specs, 2015 ram 3500 same, both trucks replaced both axles and running smooth!
R**G
I've never used RedLine products until this year. I had all the fluids changed in a 4RUNNER I bought. As far as I know they make a good product according to all the reviews I've read and some mechanics I know. I've had no issues with the 75W-85 GL5 I purchased earlier this year. Now I'm getting a leaking rear axle seals fixed and bought 3 more quarts. Quality/ Value for money I believe to be good. No noises. No shifting problems. Got here a day early. Tracking info sucked which is provided by the seller. So only 4 stars for the seller.
S**S
Works great Toyota Tacoma 2018
Trustpilot
1 month ago
2 weeks ago