--- product_id: 14924869 title: "Red Line 50204 SAE 75W80 API GL-4 Manual Transmission and Transaxle Lubricant (MTL) Car Gear Oil - 1 Quart (2 Pack)" brand: "red line" price: "€ 112.04" currency: EUR in_stock: true reviews_count: 13 category: "Red Line" url: https://www.desertcart.pt/products/14924869-red-line-50204-sae-75w80-api-gl-4-manual-transmission store_origin: PT region: Portugal --- # Friction-balanced formula for quicker, smoother shifts GL-4 API certified for superior gear protection Safe on brass synchros, no corrosive sulfurs Red Line 50204 SAE 75W80 API GL-4 Manual Transmission and Transaxle Lubricant (MTL) Car Gear Oil - 1 Quart (2 Pack) **Brand:** red line **Price:** € 112.04 **Availability:** ✅ In Stock ## Summary > ⚙️ Shift smarter, drive smoother — the secret sauce for manual mastery! ## Quick Answers - **What is this?** Red Line 50204 SAE 75W80 API GL-4 Manual Transmission and Transaxle Lubricant (MTL) Car Gear Oil - 1 Quart (2 Pack) by red line - **How much does it cost?** € 112.04 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/14924869-red-line-50204-sae-75w80-api-gl-4-manual-transmission) ## 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 by Enthusiasts:** Preferred choice for BMW, Mini Cooper, Land Rover, and more - • **DIY Friendly Maintenance:** Easy oil change process saves money and boosts driving pleasure - • **Synchro-Friendly Formula:** No reactive sulfurs means zero damage to brass synchronizers - • **Precision Gear Protection:** Extends synchro life with high-performance GL-4 lubrication - • **Optimized Shift Experience:** Balanced friction control delivers crisp, confident gear changes ## Overview Red Line 50204 SAE 75W80 API GL-4 Manual Transmission Lubricant is a synthetic gear oil designed to protect and extend the life of manual transmission synchronizers. Compatible with GL-1, GL-3, and GL-4 specs, it offers balanced friction for quicker shifts without damaging brass synchros. Trusted by premium brands like BMW and Land Rover, this 2-quart pack delivers professional-grade performance at a fraction of dealer prices, making it a must-have for enthusiasts seeking smoother, longer-lasting gearboxes. ## Description Product description Review: Works well on BMW e60 - I have an '07 BMW 550i with a stick shift that I picked up this past summer. No idea when or if the transmission oil was last changed. The gearbox mostly shifted fine, but there were times it was reluctant to go into gear, and crunched a weee bit on occasion, so I figured a transmission oil change was a good first step. BMW, of course, only recommends their own $50+ per liter solution, but this redline MTL was recommended on a couple of sites / forums @ half the price. Oil change was stupidly easy, with the worse part being the removal and reinstall of the underbody tray. Note that the car does need to be level in order to refill the gearbox properly, so that may be easier for some than others. I am fortunate enough to have a lift, so it was <30min job. It took a full 2qts, so if you have an e60 V8 BMW manual, you may want to grab a 3rd qt just in case you have some spillage. There are plenty of online videos with instructions you can search for help. The old oil in the gearbox was definitely well used, but not so terrible that I would believe it to have been the original oil. BMW has this stupid concept of "lifetime fill" with transmission fluid for the past ~20 years. This obviously discourages proper maintenance, so it really wouldn't have been surprising to find original fluid in a 16 year old car with 110k miles. I did the differential fluid as well with the redline oil recommended for that application. I did not notice much of a change the first couple trips after the oil change, but after 50-100 miles, I could definitely tell the difference. Every shift has a more "syrupy" feel to it, and the shifts slot into place with a more positive action overall. This gearbox still doesn't like to be rushed. This MTL fluid won't turn your BMW into a Honda, but it definitely works well and costs a lot less than the "genuine" oil. Definitely a worthwhile job to perform yourself, if you are able, and a great product to improve the driving experience. Review: Worked great - Noticeably smoother after replacing fluid. ## Features - HIGH PERFORMANCE - Gear protection and longer synchro life. Recommended for GL-1, GL-3, and GL-4 applications, as well as where most special synchromesh fluids are specified - OFFERS QUICKER SHIFTS - MLT Gear Oil with balanced friction control for most manual transmission synchronizers. Other synthetic gear oils are often too slippery - SAFE FOR BRASS SYNCHROS - GL-4 Gear Oil lacks the reactive sulfurs found in most GL-5 oils that cause damage. Recommended for GL-1, GL-3 & GL-4 applications - POPULAR MOTOR OIL FOR - BMW, Honda/Acura, Ford Focus, late-model Mini Cooper, Land Rover/Range Rover LT77S, Mitsubishi, Dodge & Jeep NV1500, NV3500, NV3550 & NV5600 truck transmissions - WHY RED LINE - Established in 1979, Red Line Products perform & protect better than any on the market. No compromises ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00NTEWQ1U | | Best Sellers Rank | #13,109 in Automotive ( See Top 100 in Automotive ) #2 in Powersports Gear Oil #3,894 in Powersports Parts | | Brand | Red Line | | Brand Name | Red Line | | Container Type | Bottle | | Customer Reviews | 4.9 out of 5 stars 1,729 Reviews | | Item Form | Oil | | Item Weight | 2 Pounds | | Liquid Volume | 64 Fluid Ounces | | Manufacturer | Red Line | | Material | Synthetic | | Model Number | 8542049508 | | Number of Items | 2 | | Package Information | Bottle | | Part Interchange Info | 50204 | | Part Number | 50204-2PK | | Recommended Uses For Product | Lubricant | | Specific Uses For Product | Manual transmission lubrication in specific vehicle models including BMW, Honda, Ford, Mini Cooper, Land Rover/Range Rover, Dodge & Jeep | | UPC | 737534816912 | | Unit Count | 64 Fluid Ounces | ## Product Details - **Brand:** Red Line - **Item Weight:** 2 Pounds - **Liquid Volume:** 64 Fluid Ounces - **Material:** Synthetic - **Package Information:** Bottle ## Images ![Red Line 50204 SAE 75W80 API GL-4 Manual Transmission and Transaxle Lubricant (MTL) Car Gear Oil - 1 Quart (2 Pack) - Image 1](https://m.media-amazon.com/images/I/71fVon1mirL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works well on BMW e60 *by E***Y on November 6, 2023* I have an '07 BMW 550i with a stick shift that I picked up this past summer. No idea when or if the transmission oil was last changed. The gearbox mostly shifted fine, but there were times it was reluctant to go into gear, and crunched a weee bit on occasion, so I figured a transmission oil change was a good first step. BMW, of course, only recommends their own $50+ per liter solution, but this redline MTL was recommended on a couple of sites / forums @ half the price. Oil change was stupidly easy, with the worse part being the removal and reinstall of the underbody tray. Note that the car does need to be level in order to refill the gearbox properly, so that may be easier for some than others. I am fortunate enough to have a lift, so it was <30min job. It took a full 2qts, so if you have an e60 V8 BMW manual, you may want to grab a 3rd qt just in case you have some spillage. There are plenty of online videos with instructions you can search for help. The old oil in the gearbox was definitely well used, but not so terrible that I would believe it to have been the original oil. BMW has this stupid concept of "lifetime fill" with transmission fluid for the past ~20 years. This obviously discourages proper maintenance, so it really wouldn't have been surprising to find original fluid in a 16 year old car with 110k miles. I did the differential fluid as well with the redline oil recommended for that application. I did not notice much of a change the first couple trips after the oil change, but after 50-100 miles, I could definitely tell the difference. Every shift has a more "syrupy" feel to it, and the shifts slot into place with a more positive action overall. This gearbox still doesn't like to be rushed. This MTL fluid won't turn your BMW into a Honda, but it definitely works well and costs a lot less than the "genuine" oil. Definitely a worthwhile job to perform yourself, if you are able, and a great product to improve the driving experience. ### ⭐⭐⭐⭐⭐ Worked great *by A***R on May 9, 2026* Noticeably smoother after replacing fluid. ### ⭐⭐⭐⭐⭐ Great fluid *by D***N on October 19, 2025* This came highly recommended as a replacement for the OE MTF in my FL5 Civic Type R. After driving around for a few weeks I can say the shift quality improved - especially shifting to/from 2nd. Cold-start shifting is also improved somewhat. Overall I am satisfied. The FL5 CTR takes a little over 2.3 qts. ## Frequently Bought Together - Red Line 50204 SAE 75W80 API GL-4 Manual Transmission and Transaxle Lubricant (MTL) Car Gear Oil - 1 Quart (2 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 50204 SAE 75W80 API GL-4 Manual Transmission and Transaxle Lubricant (MTL) Car Gear Oil - 1 Quart (4 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.pt/products/14924869-red-line-50204-sae-75w80-api-gl-4-manual-transmission](https://www.desertcart.pt/products/14924869-red-line-50204-sae-75w80-api-gl-4-manual-transmission) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-06-26*