Free Shipping On Orders Over $49. Details

Talk to a Mustang Enthusiast
1-877-887-1105
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Win $15,000!! Enter Now

MT-90 75w90 GL-4 Transmission Gear Oil

Item 386441
Call a Mustang Enthusiast at 1-877-887-1105
M-F 8:30A-11P, Sat-Sun 8:30A-9P
$0.00
Market Price $28.99 You Save 17% ($5.00)
Our Price

$23.99

FREE Shipping on orders over $49

Will this fit your Vehicle?

Select a different vehicle Help?
Update or Change Vehicle
In Stock

Ship to: Ashburn - 20149
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

      Product Information

      Features, Description, Reviews, Specs & Installation

      Features

      • Fully Synthetic Formula
      • Excellent Transmission Gear Protection
      • Longer Synchronizer Life
      • Quicker Shifts
      • 75w90 Weight
      • One Quart Bottle - Sold Individually
      • For Manual Transmission Mustangs

      Description

      Fully Synthetic. The Red Line MT-90 75w90 Fully Synthetic Manual Transmission Gear Oil is a great oil for your daily driven performance Mustang. Red Line's formula is formed from ester-based lubricant that resists breakdown for extended periods and offers consistent viscosity for less gear noise and improved shifting.

      Superior Protection. Being less slippery than other gear oils, the Red Line Synthetic Gl-4 Gear Oil features the appropriate coefficient of friction for most manual transmission synchronizers, offering proper synchro engagement and longer life. This MT-90 gear oil provides excellent wear and friction protection across a wide range of operating conditions and temperatures, even eliminating notchy shifty even when cold.

      Application. Red Line Synthetic MT-90 75w90 GL-4 Transmission Gear Oil is recommended for use in 1979 to 2014 manual transmission Mustangs, including LX, V6, GT, Bullitt, Mach 1, SVT Cobra, Boss and Shelby GT500 models. Sold individually in one quart bottles.

      Application Note. Five (5) quarts of gear oil are required for a regular transmission maintenance flush.

      Fitment: 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 Details

      MPN# 50304

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      4.9

      Customer Reviews (9)

      Write a Review

      Ratings Summary

      4.9 out of 5 overall rating from 9 customers




      • May 06, 2019

        5 2011 GT - 2007Vert

        Very Good Gear Oil

        The only complaint I have is the bottle. Why not use the standard opening? I could not use my hand pump!! Otherwise it is a great product. My MT82 shifts much smoother.

        Helpful (0)
      • May 05, 2019

        5 2008 GT - TamasF

        Redline Mt fluid

        The car shifts smoothly, it was time for the fluid change so I've tried this one and so far so good. I don't feel any difference tho.

        Helpful (0)
      • November 06, 2018

        5 1987 GT - MichaelF

        Great product

        Shipped quick, the 87 4runner shifts smooth and runs like a top now. I don't have a mustang but it made me select a year and model.

        Helpful (11)
      • December 08, 2017

        5 1995 GT - Keldawwg

        The best for manual trans....

        Red Line MTL is the best trans lube I have ever found... There is no better trans oil on the planet...

        Helpful (12)
      • July 23, 2017

        5 2005 GT - RobertR

        As advertised

        Used it in my 06 Tacoma and it worked great. Nice smooth shifts.

        Helpful (12)
      • April 16, 2017

        5 2017 GT350 - Clayton

        Works Great

        Serviced my 2016 Toyota Tacoma Transmission with it. Works Great. Shifts so Much better. Night and Day difference.

        Helpful (11)
      • October 31, 2016

        5 2005 Other - Redlinebreath

        Exceptional lubricant

        Used this to replace my cars trans oil. Shifting feels great. Less notchy and smooth. Would use it again. Another great redline product

        Helpful (13)
      • February 05, 2016

        4 2010 GT - gmcepic

        NO MORE CLUNKING

        This is great stuff. Transmission was making a clanking, clunking noise. This fluid cleared that up about 90.

        Helpful (14)
      • August 04, 2015

        5 1996 GT - JimH

        No more Notchy Shifting!

        I put this oil into my manual transmission in place of the old fluid, and it works great! I'd heard many good things from other owners, and decided to give it a shot, and definitely don't regret it. For a fairly high mile car, the trans shifts so much smoother now. Totally worth every penny.

        Helpful (14)

      Questions & Answers (0 answers)

      No questions about this product yet.

      Ask the First Question

      Installation & What's in the Box

      What's in the Box

      • (1) Quart Bottle of MT-90

      Tech Specs

      Will It Fit My Mustang

      • Boss 302 - 12, 13
      • Bullitt - 01, 08, 09, 19, 20
      • Cobra - 93, 94, 95, 96, 97, 98, 99, 01, 03, 04
      • Cobra R - 93, 95, 00
      • EcoBoost - 15, 16, 17, 18, 19, 20
      • GT - 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
      • GT350 - 15, 16, 17, 18, 19, 20
      • GT350R - 15, 16, 17, 18, 19, 20
      • GT500 - 07, 08, 09, 10, 11, 12, 13, 14, 20
      • LX - 87, 88, 89, 90, 91, 92, 93
      • Mach 1 - 03, 04
      • Other - 79, 80, 81, 82, 83, 84, 85, 86
      • V6 - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17

          Related Mustang Categories