--- product_id: 592333607 title: "Red Line 50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL) - 1 Quart (4 Pack)" brand: "red line" price: "AR$409397" currency: ARS in_stock: true category: "Red Line" url: https://www.desertcart.com.ar/products/592333607-red-line-50304-mt-90-75w-90-gl-4-manual store_origin: AR region: Argentina --- # Friction formula enables quicker, smoother shifts 75W-90 viscosity for optimal gear protection GL-4 safe for brass synchros, prevents corrosion Red Line 50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL) - 1 Quart (4 Pack) **Brand:** red line **Price:** AR$409397 **Availability:** ✅ In Stock ## Summary > ⚙️ Shift smarter, drive smoother — the ultimate gear oil upgrade! ## Quick Answers - **What is this?** Red Line 50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL) - 1 Quart (4 Pack) by red line - **How much does it cost?** AR$409397 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/592333607-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 - • **Trusted Legacy:** Red Line’s proven performance since 1979 means no compromises on quality - • **Bulk Value Pack:** Four 1-quart bottles ensure you’re always ready for maintenance - • **Versatile Compatibility:** Ideal for GL-1, GL-3, and GL-4 applications across manual transmissions - • **Precision Gear Protection:** Extends synchro life with high-performance GL-4 formula - • **Seamless Shifting Experience:** Eliminates notchy shifts even in cold starts for smooth drives ## Overview Red Line 50304 MT-90 is a premium 75W-90 GL-4 manual transmission lubricant designed to protect gears and extend synchronizer life. Its unique friction formula ensures quicker, smoother shifts even in cold conditions, while being safe for brass synchros by avoiding harmful reactive sulfurs. Trusted since 1979, this 4-pack offers professional-grade performance for GL-1, GL-3, and GL-4 applications, making it the go-to choice for discerning drivers who demand reliability and longevity from their vehicle fluids. ## Description Buy Red Line 50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL) - 1 Quart (4 Pack): Gear Oils - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - 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 | B000QFN326 | | Best Sellers Rank | #127,673 in Automotive ( See Top 100 in Automotive ) #150 in Gear Oils | | Brand Name | Red Line | | Compatible Material | Brass | | Container Type | Bottle | | Customer Reviews | 4.8 4.8 out of 5 stars (77) | | Included Components | (1063017) MT-90 75W90 GL-4 - QUART | | Item Form | Oil | | Item Type Name | ENGINE OIL | | Item Weight | 2 pounds | | Liquid Volume | 128 fluid ounces | | Manufacturer | Red Line | | Model Number | 50304 | | Number of Items | 4 | | Number of Packs | 4 | | Part Number | 50304 | | Recommended Uses For Product | Automotive | | SAE J300 Viscosity Grade | 75W-90 | | Unit Count | 128 Fluid Ounces | | Viscosity | 75W-90 | | Warranty Description | LIMITED WARRANTY | ## Product Details - **Brand:** Red Line - **Item Weight:** 2 pounds - **Liquid Volume:** 128 fluid ounces - **Package Information:** Bottle - **Recommended Uses For Product:** Automotive ## Images ![Red Line 50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL) - 1 Quart (4 Pack) - Image 1](https://m.media-amazon.com/images/I/51zz0TuOOUL.jpg) ## Frequently Bought Together - Red Line 50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL) - 1 Quart (4 Pack) - Slippery Pete - Fluid Pump for Standard Quart Bottles - 8cc per Pump Stroke and 3rd Hand Adapter, Transfer Gear Oil, Transmission and Differential Fluid (28mm) - Red Line 57904 75W90 GL-5 Synthetic Gear Oil for Hypoid Limited Slip Differentials - 1 Quart (2 Pack) --- ## 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.com.ar/products/592333607-red-line-50304-mt-90-75w-90-gl-4-manual](https://www.desertcart.com.ar/products/592333607-red-line-50304-mt-90-75w-90-gl-4-manual) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-10-28*