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⚙️ Shift to the future of gear oil—where performance meets precision.
Red Line 50104 is a full synthetic 75W85 GL-5 gear oil designed specifically for hypoid limited slip differentials. It features advanced friction modifiers for clutch-type LSDs, ensuring smooth operation without additional additives. Trusted by premium automotive brands and racing teams, this oil offers superior thermal stability, extreme pressure protection, and enhanced driving performance in a versatile 1-quart bottle.
| ASIN | B000J3G8KE |
| Best Sellers Rank | #1,279 in Automotive ( See Top 100 in Automotive ) #2 in Gear Oils |
| Brand | Red Line |
| Date First Available | September 27, 2006 |
| Global Trade Identification Number | 00083522501040 |
| Is Discontinued By Manufacturer | No |
| Item Form | Oil |
| Item Weight | 2 pounds |
| Item model number | RED50104 |
| Liquid Volume | 32 Fluid Ounces |
| Manufacturer | Red Line |
| Material | Synthetic |
| Number of Items | 1 |
| Package Information | Bottle |
| Product Dimensions | 4 x 4 x 4 inches |
| Recommended Uses For Product | Vehicle |
| Specific Uses For Product | Vehicle |
| UPC | 083522501040 |
| Unit Count | 32.0 Fluid Ounces |
| Viscosity | 75W85 |
S**S
Great price and good quality
Works great Toyota Tacoma 2018
R**R
Red Line compared to Original gear oil during Servicing
I changed the rear differential fluid in my 2021 Kia Seltos Turbo at 50 K miles. The original oil was clear. Checked and clean the magnet. Small amount of powered filings on magnet, normal condition. Replaced with Redline75W85 GL-5 Full Synthetic Gear Oil. The original fluid had a fish smell to it, possibly regular gear oil. The Redline nearly no smell and the oil felt more slippery on my hand. After fluid install, I drove the car in traffic and the interstate. I felt like I had a little more power and easier acceleration from a Stop. I can tell the rear end is quieter as well. Next I will replace the transmission fluid. Being a dual clutch the Redline MT fluid will hopefully complement the performance increase. It should increase MPG a little. Very Good lubricant.
W**E
Great Quality
I purchased this to replace the rear differential fluid on my 2020 explorer and there’s definitely a noticeable difference in the performance. I will be using this again!
N**K
Fast shipping always in stock.
Shipped super fast. Arrived a day earlier than expected. Came in (2), 1 qt bottles. Great product - using this Friday on a GR Corolla for transfer case and rear differential fluid change. Only fluid I could get since Toyota has a National back order on their fluid and it’s about $100 for (1) qt.
J**N
Good replacement for factory fluid
Good replacement for the factory fluid.
A**R
trans oil fix
worked fine met industry specs
L**E
Works
Hasn’t destroyed the car so far so I guess it works well!
S**R
Suggest you try it!
Highly recommend the Redline products! Save money , and every bit as good as the Toyota brand fluid!
J**N
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 👌🏻😎🤪
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
N**A
I was looking for this fluid for my 2020 RAV4 I could not find the exact info any where, and the Toyota Dealer ship want to charge me an arm and leg so this was a really great option. Thanks
E**L
Good
J**Y
Is what it says. Comes packaged well.
Trustpilot
3 days ago
2 months ago