--- product_id: 615253453 title: "Red Line (50304) MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant - 1 Quart (Pack of 3)" brand: "red line" price: "₨3146" currency: SCR in_stock: true reviews_count: 13 url: https://www.desertcart.sc/products/615253453-red-line-50304-mt-90-75w-90-gl-4-manual store_origin: SC region: Seychelles --- # High-temp resistance up to 300°F Safe for brass synchros, no reactive sulfurs 75W-90 viscosity for optimal gear protection Red Line (50304) MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant - 1 Quart (Pack of 3) **Brand:** red line **Price:** ₨3146 **Availability:** ✅ In Stock ## Summary > ⚙️ Shift smoother, drive smarter — the ultimate manual transmission upgrade! ## Quick Answers - **What is this?** Red Line (50304) MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant - 1 Quart (Pack of 3) by red line - **How much does it cost?** ₨3146 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/615253453-red-line-50304-mt-90-75w-90-gl-4-manual) ## Best For - red line enthusiasts ## Why This Product - Trusted red line brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Gearbox Guardian:** Protects brass synchros by avoiding damaging reactive sulfurs found in GL-5 oils. - • **Proven Track Record:** Trusted by enthusiasts and pros since 1979 for unmatched transmission longevity. - • **Versatile Compatibility:** Perfect for GL-1, GL-3, and GL-4 applications, including special synchromesh fluids. - • **Endurance Under Pressure:** Maintains performance on high-speed tracks, daily commutes, and rugged off-road use. - • **Smooth Shifts, Every Time:** Eliminates notchy shifting even in cold starts for buttery gear changes. ## Overview Red Line MT-90 75W-90 GL-4 Manual Transmission Lubricant is a premium gear oil designed for superior synchro protection and ultra-smooth shifting. With a high-temp rating of 300°F and compatibility across GL-1, GL-3, and GL-4 specs, it’s engineered to extend transmission life and eliminate grinding, even in cold conditions. Trusted by automotive enthusiasts for over four decades, this lubricant ensures reliable performance on everything from daily drives to high-performance track days. ## Features - The information below is per-pack only - HIGH PERFORMANCE - gear protection and longer synchro life. Recommended for GL-1, GL-3, and GL-4 applications. - QUICKER SHIFTS - perfect synchronizer coefficient of friction and eliminates notchy shifting, even when cold - REQUIREMENTS - gear oil viscosity of 75W; 80W; SAE 40 10W40 and 15W40 motor oil - POPULAR GEAR OIL FOR - GL-1, GL-3 and GL-4 applications, as well as where most special synchromesh fluids are specified. Safe for brass synchros, as it lacks the reactive sulfurs found in most GL-5 oils that cause damage - WHY RED LINE - Established in 1979, Red Line Products perform & protect better than any on the market. No compromises ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B0CXPXWGY5 | | Best Sellers Rank | #1,941 in Automotive (See Top 100 in Automotive) #5 in Gear Oils | | Brand Name | Red Line | | Compatible Material | Brass | | Container Type | Bottle | | Customer Reviews | 4.9 4.9 out of 5 stars (5,127) 4.9 out of 5 stars | | Included Components | MT-90 75W-90 GL-4 | | Item Form | Fluids,Oil | | Item Type Name | ACCESSORIES | | Item Weight | 5.1 pounds | | Liquid Volume | 96 fluid ounces | | Manufacturer | Yukon Gear & Axle | | Material | Brass | | Model Number | 50304 | | Number Of Items | 3 | | Part Number | 50304 | | Recommended Uses For Product | Lubricant,Lube | | Sae J300 Viscosity Grade | 75W-90 | | Unit Count | 96 Fluid Ounces | | Upper Temperature Rating | 300 °F | | Viscosity | 75W90 | | Warranty Description | LIMITED WARRANTY | ## Product Details - **Brand:** Red Line - **Item Weight:** 5.1 pounds - **Liquid Volume:** 96 fluid ounces - **Material:** Brass - **Package Information:** Bottle ## Images ![Red Line (50304) MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant - 1 Quart (Pack of 3) - Image 1](https://m.media-amazon.com/images/I/711nckj+iNL.jpg) ## Available Options This product comes in different **Size, Number Of Items** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Scion grinding in 2nd or 3rd? This is what you need! *by on Reviewed in the United States June 26, 2026* Wow, I am shocked!So I've been dealing with my gears grinding in 2nd and 3rd for the past 1 1/2 Years in my manual 2005 Scion XA the car has had the problem since before i bought it, The previous owners replaced the clutch, And I'm assuming that someone had added extra gear oil, Because it spilled out when i took off the fill cap on ramps, I've been trying to figure out the grinding, For the past 2 years doing everything but trying to put a new clutch in, Previous owners also stated that the mechanic may have put the clutch in wrong, I guess he didn't, Because this nearly completely fixed the issue in under 200 miles of driving, Driving has also become much smoother, If you have a Scion XA i suggest changing to this oil regardless if your gears are grinding!You only need exactly 2 quarts for the Scion XA no more no less, I wish all m mechanics would look this up before adding too much oil!I found this out from reading forms on the Scion XA, Everyone suggested this oil for the grinding and regardless! So i hope someone sees it here! ### ⭐⭐⭐⭐⭐ Upgrade for 2008 Scion xB Manual Transmission *by on Reviewed in the United States October 20, 2026* Upgrade for my 2008 Scion xB’s standard gearbox. Ultra smooth shifting. Amazing product. ### ⭐⭐⭐⭐⭐ Just as I expected. *by on Reviewed in the United States September 22, 2026* Changed the fluid out in my Toyota C60 transmission. Shifts smoothly with good function from the syncros. ## Frequently Bought Together - Red Line (50304) MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant - 1 Quart (Pack of 3) - Slippery Pete 5cc Hand Pump Transfers Gear Oil, Transmission and Differential Fluids From Quart Bottles (Not for Red Line Quarts) (1) - Rexka 12pcs Transfer & Differential Service Gasket Kit Compatible with Toyota Lexus 4Runner Land Cruiser Tundra Tacoma FJ Cruiser Highlander RAV4 Sequoia Sienna 1215710010 9043024003 90430A0003 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sc/products/615253453-red-line-50304-mt-90-75w-90-gl-4-manual](https://www.desertcart.sc/products/615253453-red-line-50304-mt-90-75w-90-gl-4-manual) --- *Product available on Desertcart Seychelles* *Store origin: SC* *Last updated: 2026-10-27*