---
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: "R$438"
currency: BRL
in_stock: true
reviews_count: 13
category: "Red Line"
url: https://www.desertcart.com.br/products/2018135-red-line-50204-sae-75w80-api-gl-4-manual-transmission
store_origin: BR
region: Brazil
---

# Friction-balanced for quicker, smoother shifts 75W80 viscosity for optimal gear protection GL-4 safe formula protects brass synchros Red Line 50204 SAE 75W80 API GL-4 Manual Transmission and Transaxle Lubricant (MTL) Car Gear Oil - 1 Quart

**Brand:** red line
**Price:** R$438
**Availability:** ✅ In Stock

## Summary

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

## 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?** R$438 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/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

- • **Brass Synchro Safe:** No reactive sulfurs—engineered to safeguard delicate brass synchronizers from wear.
- • **Precision Shift Control:** Experience lightning-fast, silky smooth gear changes that elevate your drive.
- • **Synchro Longevity Boost:** Extend your transmission’s life with advanced protection designed for GL-1, GL-3 & GL-4 specs.
- • **Proven Legacy Since 1979:** Red Line’s unmatched formula delivers uncompromising performance and durability every mile.
- • **Trusted by Performance Enthusiasts:** The go-to gear oil for BMW, Honda/Acura, Mini Cooper, Land Rover, and more—join the elite drivers.

## Overview

Red Line 50204 SAE 75W80 API GL-4 Manual Transmission and Transaxle Lubricant is a premium synthetic gear oil designed for superior protection and smoother shifting in manual transmissions. Compatible with GL-1, GL-3, and GL-4 applications, it’s safe for brass synchros and trusted by top automotive brands. With a high flash point of 232°C and a balanced friction formula, it enhances synchro life and delivers quick, precise gear changes, making it the preferred choice for performance and longevity.

## Description

Buy Red Line 50204 SAE 75W80 API GL-4 Manual Transmission and Transaxle Lubricant (MTL) Car Gear Oil - 1 Quart: Transmission Fluids - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

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 | #12,869 in Automotive ( See Top 100 in Automotive ) #65 in Transmission Fluids |
| Brand | Red Line |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,127) |
| Date First Available | July 3, 2009 |
| Exterior | Machined |
| Flash Point | 232 Degrees Celsius |
| Global Trade Identification Number | 00083522502047 |
| Is Discontinued By Manufacturer | Yes |
| Item Form | Liquid |
| Item Weight | 1.7 pounds |
| Item model number | (50204) |
| Liquid Volume | 32 Fluid Ounces |
| Manufacturer | Red Line |
| Manufacturer Part Number | 50204 |
| Material | Brass |
| Model | Quart |
| Number of Items | 1 |
| OEM Part Number | 50204 |
| Package Information | Bottle |
| Product Dimensions | 9 x 3.91 x 3.82 inches |
| Recommended Uses For Product | auto racing |
| Special Features | 75W80, Gear Oil|Drivetrain & Differentials, MTL 75W80 Manual Transmission Gear Oil GL-4 1 Quart Red Line Oil, Manual Transmission Gear Oil |
| 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 |

## 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)

## Available Options

This product comes in different **Size** options.

## 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 Brazil*
*Store origin: BR*
*Last updated: 2026-02-14*