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Royal Purple Synchromax Manual Transmission Fluid

Market Price $21.99 You Save 25% ($5.54)
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  • Item 45004
  • MPN# 1512

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    Features, Video & Details

    • Smoother Shifts
    • Better Transmission Performance
    • Superior Protection
    • Full Synthetic
    • Resists Breakdown
    • 1-Quart Bottle

    Review & Installation Video

    Review & Install Video

    Protection. Royal Purple Synchromax® is a full synthetic transmission fluid that provides superior wear protection for your Mustang's drivetrain. Synchromax® is formulated with Royal Purple's synthetic, proprietary Synerlec® additive technology, which offers improved shift quality over a wide temperature range and reduced gear noise. Use Royal Purple Synchromax on your Mustang's next fluid change for the cheapest insurance you can get against future transmission breakdowns.

    Better Shifts. If your transmission is notchy, rough, or loud but is mechanically fine, a fresh fill of Synchromax® can help smooth things back out. If you have a new Mustang or transmission, changing your fluid to Synchromax can keep your transmission working better - both now and later.

    Protects Internal Components. Synchromax® is fully compatible with all types of friction materials and offers excellent corrosion and oxidation protection without affecting the soft metals commonly found in manual transmission synchronizers.

    Application. Synchromax® is recommended for manual transmissions that specify an automatic transmission fluid or motor oil. Please note the T-45/T-3650 will take approximately 3.25 quarts to fill the transmission after a full transmission fluid 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 Details

    What's in the Box
    • (1) One Quart bottle
    Installation Info
    Tech Specs
    Will it fit my Mustang?
    • Boss 302 - 12, 13
    • Bullitt - 01, 08, 09
    • Cobra - 93, 94, 95, 96, 97, 98, 99, 01, 03, 04
    • Cobra R - 93, 95, 00
    • EcoBoost - 15, 16, 17, 18
    • 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
    • GT500 - 07, 08, 09, 10, 11, 12, 13, 14
    • 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

    Fits manual transmissions

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    Questions & Answers (39)

    5 Top Rated Questions

    how many quarts of transmission fluid do i need for my 1998 t-5 transmission?

    • you need 3 quarts. you can refer to your owners manual.

    Helpful (5) Show 2 more answers

    Would it be okay to mix this product with Slick 50 manual transmission formula? 1 bottle = 10 oz dose.

    • We do not recommend mixing additives with the Royal Purple Synchromax Manual Transmission Fluid.

    Helpful (2) nooby I NEED a manual transmission oil change in my 2006 S197 GT, but I need to know how much of this do I need for a full top off after I drain it and how to fill it...can I fill it from the shifter and unscrew the knob and poor it in? or Do I have to fill it from the fill hole?

    • The 2006 Mustang GT equipped with a manual transmission will require 3.25 quarts of transmission fluid. After you drain your transmission, you will need to refill it from the fill hole located on the transmission.

    Helpful (2)

    How many bottles do I need for my 2015 ecoboost mustang?

    • Hello, FranklinNT5U3728822 the manual ecoboost uses 2.7 Qts

    Helpful (1)

    Hello good evening! How many quarts for a 2014 manual GT 5.0

    • The 2014 Mustang GT 5.0L will take 2.7 quarts of transmission fluid.

    Helpful (1)
    Post Your Question
    10 More Questions
    Is this safe for use in the MT82 2011+ GTs? Is this safe to use in the manual MT82 transmission for 2011+ GTs? I ask because I have heard its not good to change fluids outside of Motorcraft but I used this in my 01 GT and it made a huge difference in shift performance and I might have even picked up a few ponies 3 answers
    Would this fix...? I'm long over due for a transmission fluid change and most likely going to buy this fluid, but I was wondering if this would fix a noise I have in 5th gear, (rubbing noise that is not constant but more of a lopping pattern noise) Keep up the awesome service AM! 5 answers
    I have a 2004 40th anniversary the 3.9 liter v6. It’s a 5spd. Can anyone tell me if this is safe to use for one for 2 how much do I need and 3 can I also buy a filter replacement. Also how do you change the fluid in the gear box does that drain as well when your draining trans 1 answer
    Do I need to mix friction modifier with the royal purple syncromax or does it not need any? 1 answer
    How many quarts does my 1993 mustang gt take? 1 answer
    What friction modifier should you use with this product? and how much of it? 2007 gt500. 1 answer
    How many quarts for the t 45 in my 99 cobra? 1 answer
    is this the correct fluid for a 11 GT with MT82? Whats the easiest way to drain and fill my transmission at home? Been having issues getting into low gears, especially 2nd... 1 answer
    ATF is what i keeping seeing is recommended for 99 mustang GT's with manual transmissions. would this be safe to use on my 99 GT? If so how many quarts would i need ? 1 answer
    how many bottles are required for a 2007 GT500? 1 answer

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    Customer Reviews (100+) Write a Review

    Overall Rating 4.8

    out of 5 stars

    • 5/5

      July 11, 2018

      Works great

      Can’t complain here! Searched 5 different stores and couldn’t find this anywhere and was able to ship it right two me in two days for free from AM. Shifter is feeling better


      Year: 2003 Submodel: GT

      Helpful (0)

    • 5/5

      June 26, 2018

      Sooner than needed but smoother now

      I bought 4 bottles of this. Although the Haynes manual and says the MT82 in the 2012 GT only needs 2.7 litres (3 bottles) I thought it was best to have more than needed. Turns out the extra bottle was needed as the transfer pump couldn't pick up all of the fluid in the reservoir. Before I changed the fluid the Ford Racing short shift was precise, but a little notchy, and occasionally baulked on 2nd to 3rd shifts. Post fluid change, the shifts have been much slicker while retaining the precision.


      Year: 2012 Submodel: GT

      Helpful (1)

    • 5/5

      June 25, 2018

      The best stuff out there! Beats OEM!

      Changed my 2012 V6 Mustang manual trasnmission with this. The OEM stuff was installed not long prior based on the color of what came out... and I noticed a big difference. Shifts like butter... and it's harder to lug on the engine if I shift too soon. It just grabs and goes. AM had the best price around free shipping on three. Hard to beat!


      Year: 2012 Submodel: V6

      Helpful (1)

    • 5/5

      June 20, 2018

      Mustang t5

      Awesome product works well! Put it in my mustang and it shifts way better than it did before.


      Year: 1993 Submodel: LX

      Helpful (2)

    • 5/5

      June 12, 2018

      Great product

      Did just what it said it was going to do. Better shifts less notchey and reduces heat. Great product will buy again.


      Year: 2011 Submodel: GT

      Helpful (2)

    • 4/5

      June 06, 2018

      Little pricey but quality fluid.

      I bought this on recommendations from some of the Mustang forums. It is pretty good but has not changed a lot from OEM fluid. Overall good maybe pricey but not really.


      Year: 2015 Submodel: EcoBoost

      Helpful (2)

    • 5/5

      June 03, 2018

      Awesome product!

      This stuff is smooth!! Better shifts and less noise. I’d definitely recommend


      Year: 2011 Submodel: V6

      Helpful (2)

    • 5/5

      May 24, 2018

      Best on the market

      Really changed the shifting behavior of the stock my-82 I highly recommend


      Year: 2014 Submodel: GT

      Helpful (2)

    • 5/5

      May 13, 2018

      great product

      I have a 2005 mustang GT. with 70,000 miles on it and the transmission shifts like a hot knife going through butter. very happy.


      Year: 2005 Submodel: GT

      Helpful (2)

    • 5/5

      February 24, 2018

      Great product for the mt82

      I had this tranny fluid installed when ever I replaced my clutch and I instantly noticed my shifts where smoother and their was less notchiness in my shifts


      Year: 2011 Submodel: GT

      Helpful (3)

    • 5/5

      February 22, 2018


      Haven't used it yet, I am still waiting on parts to install. But AM has the best shipping time there is!


      Year: 2004 Submodel: GT

      Helpful (3)

    • 5/5

      February 12, 2018

      Thank you

      Shipped fast, should offer a bottle pump to aid installation. I was way overdue changing the fluid. I haven't really noticed any difference with this but my way of wasn't gonna hurt using it.


      Year: 2014 Submodel: GT

      Helpful (2)

    • 5/5

      November 28, 2017

      Good. Stuff

      Transmission shifts smoothly.knowong that your adding the best stuff gives a piece of mind and keeps ur car running at its best.


      Year: 1995 Submodel: GT

      Helpful (4)

    • 5/5

      November 26, 2017

      Instant difference in shifting

      From the moment I changed the fluid out to this, the transmission shifting improved drastically. I would recommend this in any MT-82 transmission.


      Year: 2011 Submodel: GT

      Helpful (4)

    • 5/5

      September 23, 2017

      Royal purple

      Good stuff didn't notice a big difference in shift quality but I did feel a slight one


      Year: 2014 Submodel: GT

      Helpful (3)

    • 5/5

      September 19, 2017

      Royal purple Synchromax

      I have a 2002 Mustang GT the transmission is a five speed and it always felt a little weird going into second gear in third gear like it would catch so I had the transmission flushed and put the royal purple in and it's night and day difference it slides in and out of gear perfect with no more catching 100 worth the money. must buy !!!


      Year: 2002 Submodel: GT

      Helpful (3)

    • 4/5

      August 23, 2017

      Worth the money

      I bought my v6 manual trans Mustang used with 104,000 miles on it. I didn't like the "whine" from the transmission so I had a shop look thru it and they replaced every bearing and 2 gears. 2 years later I still didn't like the "whine" and decided to try Royal Purple. The fluid I replaced was only 2 years old, but the Royal Purple made a noticeable improvement in noise level and ease of shifting. I am a happy camper


      Year: 2006 Submodel: V6

      Helpful (4)

    • 5/5

      June 20, 2017

      Great product!!

      Awesome product definately made reverse an first gear easier to go into gear. Took it for a short drive shifts so much easier into gears can't wait to rip it at the track!


      Year: 1995 Submodel: GT

      Helpful (3)

    • 5/5

      June 18, 2017

      Royal purple

      A noticeable improvement in my vehicles performance after putting Royal purple in my transmission. Thanks.


      Year: 1995 Submodel: GT

      Helpful (3)

    • 5/5

      May 27, 2017

      Royal Purple for the win

      I've spent my life restoring classics and building modern muscle cars. The peace of mind RP gives youbis like no other. Call me biased but I use RP products in every situation with my cars. From differentials to power steering. You won't be disappointed with the difference you actually feel.


      Year: 2007 Submodel: GT

      Helpful (3)