---
product_id: 2018135
title: "Red Line 50204 SAE 75W80 API GL-4 Manual Transmission and Transaxle Lubricant (MTL) Car Gear Oil - 1 Quart"
brand: "red line"
price: "€ 52.66"
currency: EUR
in_stock: true
reviews_count: 8
category: "Red Line"
url: https://www.desertcart.it/products/2018135-red-line-50204-sae-75w80-api-gl-4-manual-transmission
store_origin: IT
region: Italy
---

# Friction-balanced formula for quicker, smoother shifts 75W80 viscosity for optimal gear protection GL-4 safe for brass synchros, no corrosive sulfurs Red Line 50204 SAE 75W80 API GL-4 Manual Transmission and Transaxle Lubricant (MTL) Car Gear Oil - 1 Quart

**Brand:** red line
**Price:** € 52.66
**Availability:** ✅ In Stock

## Summary

> ⚙️ Shift like a pro, protect like a boss.

## Quick Answers

- **What is this?** Red Line 50204 SAE 75W80 API GL-4 Manual Transmission and Transaxle Lubricant (MTL) Car Gear Oil - 1 Quart by red line
- **How much does it cost?** € 52.66 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/2018135-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

- • **Proven Legacy:** Red Line’s 40+ years of innovation means no compromises on performance
- • **Effortless Shifting:** Balanced friction control delivers silky smooth gear changes
- • **Trusted by Enthusiasts:** Preferred by BMW, Honda/Acura, Mini Cooper & more for peak transmission health
- • **Precision Gear Protection:** Extends synchro life with high-performance GL-4 formula
- • **Synchro-Friendly Chemistry:** Safe for brass synchros, avoiding damage common in GL-5 oils

## Overview

Red Line 50204 SAE 75W80 API GL-4 Manual Transmission and Transaxle Lubricant is a premium synthetic gear oil designed for manual transmissions requiring GL-1, GL-3, and GL-4 specs. It offers superior gear protection, smoother and quicker shifts with balanced friction, and is safe for brass synchros, making it ideal for performance and daily drivers alike. Trusted by top automotive brands and backed by decades of expertise, this 1-quart bottle ensures your transmission runs cooler, lasts longer, and shifts flawlessly.

## Description

Product description

Review: Great fluid - 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.
Review: From clunk-o-matic to smooth as glass shifting - Used it for my 2011 Mazda 2. What a difference. Shifts so smooth. I don't know if it's the quality of this stuff or I was just long overdue to change my trans oil, but it really feels nice. I decided to go with this product despite being more expensive because of the reviews and reputation. Figure might as well use the best since the change interval is quite long and better products typically have a longer use life which would further extend the change interval. I'm sure anything would have been an improvement but to be the extra cost seems worth it.

## 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 | B000CPCBEG |
| Best Sellers Rank | #16,300 in Automotive ( See Top 100 in Automotive ) #107 in Transmission Fluids |
| Brand | Red Line |
| Brand Name | Red Line |
| Container Type | Bottle |
| Customer Reviews | 4.8 out of 5 stars 1,129 Reviews |
| Flash Point | 232 Degrees Celsius |
| Global Trade Identification Number | 00083522502047 |
| Included Components | Auto part, Automotive Accessories, Replacement and Performance parts |
| Item Form | Liquid |
| Item Type Name | Car Gear Oil - 1 Quart Bottle |
| Item Weight | 1.7 Pounds |
| Liquid Volume | 32 Fluid Ounces |
| Manufacturer | Red Line |
| Material | Brass |
| Package Information | Bottle |
| Recommended Uses For Product | auto racing |
| Specific Uses For Product | Specific vehicle transmissions (e.g. BMW, Honda/Acura, Ford Focus, Land Rover/Range Rover LT77S, Mitsubishi, Dodge & Jeep NV1500, NV3500, NV3550 & NV5600 truck transmissions) |
| UPC | 083522502047 |
| Unit Count | 946 Milliliters |
| Upper Temperature Rating | 1 Kelvin |
| Viscosity | 185 |
| Warranty Description | Manufacturer Warranty |

## Product Details

- **Brand:** Red Line
- **Item Weight:** 1.7 Pounds
- **Liquid Volume:** 32 Fluid Ounces
- **Material:** Brass
- **Package Information:** Bottle

## Images

![Red Line 50204 SAE 75W80 API GL-4 Manual Transmission and Transaxle Lubricant (MTL) Car Gear Oil - 1 Quart - Image 1](https://m.media-amazon.com/images/I/71fVon1mirL.jpg)

## Questions & Answers

**Q: Can I use this for my 2011 Mazdaspeed 3? (Manual transmission)**
A: It's in my 2014 CX-5 which requires 75W-80. Works better than Mazda MTF.

**Q: What kind of improvement will I see using this over factory in an mt82 in a mustang?**
A: Not much, it runs a tad smoother when at temp but the notorious 3rd gear issue is still present, I noticed 5th would also scratch when it got really really cold. I'm thinking about switching to ATF like most others have in accordance with Ford's specs.

**Q: I have a bmw 89 325IS and i need 80w gl-4 which one is the one i need to get?**
A: If you have a manual transmission then you are looking at the correct one which is part number 50204

**Q: Is this safe to use in my 1980 Mercedes Benz 240D?**
A: Did a search on Pelican Parts for your 240D and it recommends this fluid for your manual transmission.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ From clunk-o-matic to smooth as glass shifting
*by M***K on July 7, 2025*

Used it for my 2011 Mazda 2. What a difference. Shifts so smooth. I don't know if it's the quality of this stuff or I was just long overdue to change my trans oil, but it really feels nice. I decided to go with this product despite being more expensive because of the reviews and reputation. Figure might as well use the best since the change interval is quite long and better products typically have a longer use life which would further extend the change interval. I'm sure anything would have been an improvement but to be the extra cost seems worth it.

### ⭐⭐⭐⭐⭐ I wish I'd had this years ago.
*by M***E on July 12, 2012*

I've owned my 02 Acura RSX Type S since new in August 2001. It is still the best and most fun car I've ever owned in my 50 years of driving. The only complaint I've ever had was shifting from 1st to 2nd gear. The speed of the car, whether sedate or aggressive didn't seem to matter. The ratio jump between 1st and 2nd gears is substantial and it was always clunky, sometimes grinding. Down shifting was never an issue from 3rd to 2nd. In the last few years I've tried several things to improve the shifting. I started with a short throw shift lever from B&M which seemed to help, but in reality caused the shift cable end to bend, because of the design of the lever. What had helped was the removal of the rubber bushings that mounted the shifter housing to the floor of the car, the B&M kit included aluminum bushings to replace the originals. Mounting the housing solid took out unnecessary movement and wasted motion. This past February I swapped out the entire shifter mechanism for a billet aluminum unit that definitely improved things along with new shifter cables from the same source, K-tuned. This past Tuesday, I drained the Honda manual transmission fluid for the Red Line MTL. Almost immediately the shifting is smoother with no clunky 1--2 shifts. The car has 92,000+ miles on it. The trans oil has been replaced according to the manufacturer's outline, so this last change was 30,000 miles early. I really wish I'd known about Red Line MTL ten years ago. This stuff really works. Update: August 31. Since replacing the Honda manual transmission fluid with the Red Line MTL, I've been to Michigan and back and Wisconsin and back to St. Louis. I did normal maintenance on my car last weekend. Checked the transmission fluid and it was as clean as the day I installed it and shifting is smooth, almost effortless.

## Frequently Bought Together

- Red Line 50204 SAE 75W80 API GL-4 Manual Transmission and Transaxle Lubricant (MTL) Car Gear Oil - 1 Quart
- 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 (2 Pack)

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-03-16*