---
product_id: 6635153
title: "50504 MT-85 Manual Transmission 75W85 GL-4 Gear Oil - 1 Quart"
brand: "red line"
price: "₨22317"
currency: LKR
in_stock: true
reviews_count: 12
category: "Red Line"
url: https://www.desertcart.lk/products/6635153-50504-mt-85-manual-transmission-75w85-gl-4-gear-oil
store_origin: LK
region: Sri Lanka
---

# Extends synchro & gear life GL-4 certified gear oil Optimized for cold & warm climates 50504 MT-85 Manual Transmission 75W85 GL-4 Gear Oil - 1 Quart

**Brand:** red line
**Price:** ₨22317
**Availability:** ✅ In Stock

## Summary

> ⚙️ Shift smarter, not harder — the gear oil pros swear by!

## Quick Answers

- **What is this?** 50504 MT-85 Manual Transmission 75W85 GL-4 Gear Oil - 1 Quart by red line
- **How much does it cost?** ₨22317 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/6635153-50504-mt-85-manual-transmission-75w85-gl-4-gear-oil)

## 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

- • **Synchro Savior:** Formulated without reactive sulfurs to protect delicate brass synchros from wear.
- • **Trusted Legacy:** Red Line’s 40+ years of innovation means no compromises on performance or protection.
- • **Proven Longevity:** Extends transmission life with superior gear protection and longer synchro durability.
- • **Universal Compatibility:** Perfect fit for Nissan 350Z/370Z, Mitsubishi Evo, VW 02J, Hyundai, Kia & more.
- • **Seamless Shifts, All Year Round:** Balanced friction control ensures smooth gear changes even in freezing temps.

## Overview

Red Line 50504 MT-85 is a premium 75W85 GL-4 manual transmission gear oil designed for high performance and extended synchro life. It offers excellent gear protection and smoother shifting in both cold and warm climates, safely compatible with brass synchros. Ideal for a wide range of vehicles including Nissan, Mitsubishi, VW, Hyundai, and Kia, this synthetic blend oil is trusted by enthusiasts and professionals alike for reliable, long-lasting transmission care.

## Description

Buy Red Line 50504 MT-85 Manual Transmission 75W85 GL-4 Gear Oil - 1 Quart: Motor Oils - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Solid MTF - Pretty smooth shifting
Review: Works great in my MKIV Jetta - This works great in my 2001 Jetta 5spd (MKIV 02J) My transmission has over 200k miles on it. I've changed the fluid at 100k, then at 150k with Pennzoil synchromesh because of a worn 2nd to 3rd gear synchro, and then again at 200k with MT-85 MT-85 must be a newer product because I was not aware of this before. I have read many, many posts in the forums about people talking about how the MT-90 is great in the summer but a bit too thick for the winter. Those same people were saying that MTL is great in the winter but too thin for the summer. So I figured that MT-90 was too thick for my transmission for winter use, and that MTL which is like a MT-80 or something would be great for winter but too thin for the summer (like the Pennzoil synchromesh). So far, this MT-85 gear oil works perfect in my transmission in both warm and cooler weather. It feels sooo much better to shift than the Pennzoil synchromesh, which was recommended to me by others. However, that one was not GL-4 certified like my transmission requires. So I switched it out asap to this MT-85. Even though this gear oil is spec'd for Nissans or something, it works perfect with my VW 02J. The smart people in the forums mix 50/50 MTL and MT-90 anyway, which would be closest to the MT-85 as I understand it and as those people speculate. This product effectively eliminates the need to mix and match 2 different gear oils. 5000 miles later, this MT-85 gear oil works perfectly in my transmission. If I remember, I will give a 10k, 15k, 20k, and beyond updates on how this gear oil holds up... That is if my car lasts that long! lol NOTE: This review is for my particular transmission which is the VW 02J 5 speed transmission. These are very picky gearboxes with regards to gear oil. This gear oil works great with my gearbox, but your mileage may vary.

## 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 - Excellent gear and synchro protection, balanced friction control & slipperiness for easier shifting even in cold climates
- 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 GEA OIL FOR - Nissan 350Z and 370Z (also most Maxima, Altima & Sentra), Mitsubishi Evolution, Hyundai, Kia and Quaife synchro manual trans applications
- WHY RED LINE - Established in 1979, Red Line Products perform & protect better than any on the market. No compromises

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004D4URV6 |
| Best Sellers Rank | #22,485 in Automotive ( See Top 100 in Automotive ) #295 in Motor Oils |
| Brand | Red Line |
| Date First Available | November 19, 2010 |
| Global Trade Identification Number | 00083522505048 |
| Is Discontinued By Manufacturer | No |
| Item Form | Fluids,Oil |
| Item Weight | 1.95 pounds |
| Item model number | RED50504 |
| Liquid Volume | 32 Fluid Ounces |
| Manufacturer | Red Line |
| Material | Mineral Oil, Synthetic Oil |
| Number of Items | 1 |
| Package Information | Bottle |
| Product Dimensions | 13 x 6 x 6 inches |
| Recommended Uses For Product | Vehicle |
| UPC | 083522505048 |
| Unit Count | 32.0 Fluid Ounces |
| Viscosity | 5w-30 |

## Product Details

- **Brand:** Red Line
- **Item Weight:** 1.95 Pounds
- **Liquid Volume:** 32 Fluid Ounces
- **Material:** Mineral Oil, Synthetic Oil
- **Package Information:** Bottle

## Images

![50504 MT-85 Manual Transmission 75W85 GL-4 Gear Oil - 1 Quart - Image 1](https://m.media-amazon.com/images/I/71eCG2BDySL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Solid MTF
*by D***W on December 9, 2025*

Pretty smooth shifting

### ⭐⭐⭐⭐⭐ Works great in my MKIV Jetta
*by M***A on August 18, 2018*

This works great in my 2001 Jetta 5spd (MKIV 02J) My transmission has over 200k miles on it. I've changed the fluid at 100k, then at 150k with Pennzoil synchromesh because of a worn 2nd to 3rd gear synchro, and then again at 200k with MT-85 MT-85 must be a newer product because I was not aware of this before. I have read many, many posts in the forums about people talking about how the MT-90 is great in the summer but a bit too thick for the winter. Those same people were saying that MTL is great in the winter but too thin for the summer. So I figured that MT-90 was too thick for my transmission for winter use, and that MTL which is like a MT-80 or something would be great for winter but too thin for the summer (like the Pennzoil synchromesh). So far, this MT-85 gear oil works perfect in my transmission in both warm and cooler weather. It feels sooo much better to shift than the Pennzoil synchromesh, which was recommended to me by others. However, that one was not GL-4 certified like my transmission requires. So I switched it out asap to this MT-85. Even though this gear oil is spec'd for Nissans or something, it works perfect with my VW 02J. The smart people in the forums mix 50/50 MTL and MT-90 anyway, which would be closest to the MT-85 as I understand it and as those people speculate. This product effectively eliminates the need to mix and match 2 different gear oils. 5000 miles later, this MT-85 gear oil works perfectly in my transmission. If I remember, I will give a 10k, 15k, 20k, and beyond updates on how this gear oil holds up... That is if my car lasts that long! lol NOTE: This review is for my particular transmission which is the VW 02J 5 speed transmission. These are very picky gearboxes with regards to gear oil. This gear oil works great with my gearbox, but your mileage may vary.

### ⭐⭐⭐⭐⭐ Changed from mt90 to mt85, Great fluid!
*by S***H on July 20, 2012*

I have a 2005 Hyundai Elantra with 100,000 miles. I put in MT-90 before, 30,000 miles ago, due to the fact that I couldn't get the MT-85 quick enough. The MT-90 ran great but I wanted to go to the correct weight for my vehicle. That is why I switched. I have seen the same smooth shifting that I had with the MT-90. This vehicle tends to grind when doing quick shifts from first to second and 90 removed that issue and it has not returned with the 85 either. I have noticed that the MT-85 feels different driving when compared to the MT-90. I would say smoother and less resistance/free'r spinning but I will attribute this to being all in my head. I love the redline fluids. Knowing that this is full synthetic I know it will last longer than most regular fluid out there. The added piece of mind is worth the added cost and I would put redline MTF in any future vehicles as well.

## Frequently Bought Together

- Red Line 50504 MT-85 Manual Transmission 75W85 GL-4 Gear Oil - 1 Quart
- Red Line 50504 MT-85 Manual Transmission 75W85 GL-4 Gear Oil - 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)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-01-24*