

⚙️ Unlock peak drivetrain power with every drop!
Red Line 50104 75W85 GL-5 Full Synthetic Gear Oil is a premium lubricant designed specifically for hypoid limited slip differentials. Its full synthetic formula with friction modifiers ensures superior gear protection, quieter operation, and enhanced traction. Trusted by top automotive brands and racing teams alike, this 1-quart oil meets multiple SAE viscosity standards and is engineered to extend drivetrain life while improving driving performance.






| ASIN | B000J3G8KE |
| Best Sellers Rank | #1,264 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!
C**A
Great stuff looks high quality
Changed differential fluid 15’ tundra , feels better and more responsive after fluid change
M**.
The best.
Great product for my 19 tacoma differentials. Found a pump for marine bottom end that fit bottle.
A**R
trans oil fix
worked fine met industry specs
P**6
Great Oil!
Meets toyota quality specs, but wish it came with a squeeze bottle. However I will take the quality oil and fill the diffs with a syringe than use the other major brand gear oils. Put in your 3rd gen tacoma and use with faith!
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
2 months ago
1 month ago