---
product_id: 7823972
title: "50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL)- 1 Quart (12 Pack)"
brand: "red line"
price: "13413916₫"
currency: VND
in_stock: true
reviews_count: 10
category: "Red Line"
url: https://www.desertcart.vn/products/7823972-50304-mt-90-75w-90-gl-4-manual-transmission-transaxle
store_origin: VN
region: Vietnam
---

# Friction formula enables quicker, smoother shifts 75W-90 viscosity for optimal gear protection GL-4 rated, safe for brass synchros, no reactive sulfurs 50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL)- 1 Quart (12 Pack)

**Brand:** red line
**Price:** 13413916₫
**Availability:** ✅ In Stock

## Summary

> ⚙️ Shift into the future with smoother, longer-lasting gear performance!

## Quick Answers

- **What is this?** 50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL)- 1 Quart (12 Pack) by red line
- **How much does it cost?** 13413916₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/7823972-50304-mt-90-75w-90-gl-4-manual-transmission-transaxle)

## 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 formula since 1979 ensures uncompromised quality
- • **Bulk Value Pack:** 12 quarts of premium lubricant to keep your fleet or personal ride running smooth
- • **Effortless Shifting:** Eliminates notchy shifts even in cold starts for seamless driving
- • **Versatile Compatibility:** Meets GL-1, GL-3, and GL-4 specs for broad manual transmission use
- • **Precision Gear Protection:** Extends synchro life with high-performance synthetic formula

## Overview

Red Line 50304 MT-90 is a synthetic 75W-90 GL-4 manual transmission lubricant designed to protect gears and extend synchronizer life. Its advanced 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 12-quart pack offers professional-grade performance for a wide range of manual transmissions.

## Description

Buy Red Line 50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL)- 1 Quart (12 Pack): Gear Oils - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: made shifting smoother - well, not much to say as i feel it smoother on shifting. only downside is the bottle opening. can't really find a right pump for it. i end up just cutting it down to the first top and was able to use a pump that i had. it didn't screw on so i just had to be extra careful not to tip it over. used it in a 2007 carolla s manual transmission that had about 132k miles on it. looks like previous owner never changed it.
Review: Not 100% satisfied but happy - I used it on my Mazda, and I am sure Red Line is better than Mazda factory filled oil. Below are my personal rating for comparing Red Line Oil and Factory Oil. Cold Shifting: Red Line 8 out of 10, Factory Oil 6 out of 10 When gear box reaches working temperature: Red Line 9.5 out of 10, Factory Oil 7.5 out of 10 When driving in a stop and go condition for more than two hours: Red Line Oil 8.5 out of 10, Factory Oil 7 out of 10 Overall: Red Line 9 out of 10, Factory Oil 7 out of 10.

## 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 | B000T9OEUE |
| Best Sellers Rank | #1,262,594 in Automotive ( See Top 100 in Automotive ) #522 in Gear Oils |
| Brand | Red Line |
| Date First Available | April 23, 2010 |
| Global Trade Identification Number | 00083522503242 |
| Is Discontinued By Manufacturer | No |
| Item Form | Oil |
| Item Weight | 10 pounds |
| Item model number | 50304 |
| Liquid Volume | 384 Fluid Ounces |
| Manufacturer | Red Line |
| Material | Synthetic |
| Number of Items | 12 |
| Package Information | Bottle |
| Product Dimensions | 16.5 x 12.3 x 9.6 inches |
| Recommended Uses For Product | Gear Oil |
| SAE J300 Viscosity Grade | 75W-90 |
| UPC | 083522503242 |
| Unit Count | 384.0 Fluid Ounces |
| Viscosity | 75W90 |

## Product Details

- **Brand:** Red Line
- **Item Weight:** 10 Pounds
- **Liquid Volume:** 384 Fluid Ounces
- **Material:** Synthetic
- **Package Information:** Bottle

## Images

![50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL)- 1 Quart (12 Pack) - Image 1](https://m.media-amazon.com/images/I/71LJIn7PldL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ made shifting smoother
*by L***N on February 20, 2019*

well, not much to say as i feel it smoother on shifting. only downside is the bottle opening. can't really find a right pump for it. i end up just cutting it down to the first top and was able to use a pump that i had. it didn't screw on so i just had to be extra careful not to tip it over. used it in a 2007 carolla s manual transmission that had about 132k miles on it. looks like previous owner never changed it.

### ⭐⭐⭐⭐⭐ Not 100% satisfied but happy
*by E***E on August 3, 2014*

I used it on my Mazda, and I am sure Red Line is better than Mazda factory filled oil. Below are my personal rating for comparing Red Line Oil and Factory Oil. Cold Shifting: Red Line 8 out of 10, Factory Oil 6 out of 10 When gear box reaches working temperature: Red Line 9.5 out of 10, Factory Oil 7.5 out of 10 When driving in a stop and go condition for more than two hours: Red Line Oil 8.5 out of 10, Factory Oil 7 out of 10 Overall: Red Line 9 out of 10, Factory Oil 7 out of 10.

### ⭐⭐⭐⭐⭐ The best choice for you classic VW Transaxle
*by C***N on June 20, 2016*

This is the best gear oil for Classic Volkswagen Type 1 & 2 transaxles. It provides the requires GL-4 rating needed while adding the benefit of quieter operation and buttery smooth gear engagement in any temperature. Be aware the synthetic nature of this gear oil will allow more oil seepage than regular non-synthetic, but it is nothing to be alarmed about. Gear oil loss over the years is negligible.

## Frequently Bought Together

- Red Line 50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant (MTL)- 1 Quart (12 Pack)
- Red Line 57904 75W90 GL-5 Synthetic Gear Oil for Hypoid Limited Slip Differentials - 1 Quart (4 Pack)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-02*