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Royal Purple Synchromax Manual Transmission Fluid

100+ Reviews
Our Price

$22.99

  • Item #45004
  • MPN# 1512

  • Market Price $25.99
  • You Save 12% ($3.00)
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Features
  • Smoother Shifts
  • Better Transmission Performance
  • Superior Protection
  • Full Synthetic
  • Resists Breakdown
  • 1-Quart Bottle
Description
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 Details

What's in the Box
  • (1) One Quart bottle
Installation Info
Will it fit my Mustang?
  • Boss 302 - 12, 13
  • Foxbody - 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93
  • Mach 1 - 03, 04
  • 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
  • Bullitt - 01, 08, 09
  • Cobra - 94, 95, 96, 97, 98, 99, 01, 03, 04, 93
  • GT - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17
  • GT500 - 07, 08, 09, 10, 11, 12, 13, 14
  • EcoBoost - 15, 16, 17

Fits manual transmissions

Most Helpful Reviews

5/5
Royal Purple Synchromax

I recommend using this transmission oil in your t-56. American muscle is where to buy this product.

Helpful (2)

5/5
much better shiffiting now

Shifts a lot more smooth now. Even seems to have reduced the minor vibration problems i had at high r.p.m.'s. Filled it through the top from shifter while leaving the fill plug open and it made life so ...

Read More
Helpful (2)

Read All 100+ Reviews
Overall Rating 4.8 out of 5 stars

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16 Questions / 3 Answers

Ask a Question

how many would i need for my 03 roush stage 2?

giovelaz

  • If your stage 2 is a manual then you have a TR3650 and you need to buy 4 bottles. You will actually use 3.2 quarts or so if its done right.

    RedSnake

    Good Answer (0) (0)

Show 1 more answer Answer This Question I need this answered (0) (0)

Safe for TR3650 Some guys on the mustang forums suggest this stuff eats away at the internals of the TR3650 in the 05-09's. Is it a safe buy or a no-go?

Cbird

  • I've run this in my 2004 3650 for well over 50K miles. I've had zero issues (other than normal age and wear) to date and my transmission has 102K on it right now with no rebuild and only one clutch change.

    Tracy67

    Good Answer (1) (0)

Answer This Question I need this answered (0) (0)

Can I add to existing transmission oil? On my car, it's hard to shift to first gear and reverse, it feels rough and dry. Sometimes at high speed, when shifting to 5th gear, it slips. I was wondering if adding some RP, without changing the entire oil, might help make shifting smoother? Thanks.

Christo

Answer This Question I need this answered (0) (0)

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Customer Reviews (100+) Write a Review

Overall Rating 4.8

out of 5 stars




  • 5/5

    February 17, 2013

    Synchromax

    Great product. Smooth shifts. Would highly recommend this product.

    Mikey48

    Year: 2002 Model: GT Driving Style: Show 'Stangs I have owned: 1 McKinney, Texas

    Helpful (2) (0)

  • 5/5

    November 29, 2012

    Outstanding

    Did no think i was going to get results like i did. I had my doubts but changed my mind as soon as I started driving. Smoother shifts than Micron. I will be switching to ro yal purple from now on. Well worth the money.

    Sando

    Year: 2010 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 2 Spring, TX, USA

    Helpful (2) (0)

  • 5/5

    October 03, 2012

    notchy trans

    08 Bullitt trans always hard to shift, 2nd up or down very had to get, first would buck on low speed coast. put Royal Purple in and immediately could tell a difference, smooth shifting, coast smoothed out. 2nd gear is great up or down now.

    Conroy6906

    Year: 2008 Model: Bullitt Driving Style: Daily Driver 'Stangs I have owned: 2 Nashville, TN, USA

    Helpful (1) (0)

  • 5/5

    September 28, 2012

    stopped car from grinding!!

    car started to pop out of gear and did alot of grinding i have benn running this for a couple of months now problem solved switching all fluids to royal purple now!

    GARBAGEMANDAN

    Year: 2004 Model: GT Driving Style: Show 'Stangs I have owned: 3 Clinton ct

    Helpful (2) (0)

  • 5/5

    September 04, 2012

    WOW!

    Royal purple synchromax Makes your pony go faster, better acceleration and smoother shifts. I used this on my 2001 GT and now im using it on my 2003 GT and works awsome. Royal purple is the best oil for your Mustang NEEDS.

    Andres0684

    Year: 2003 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 2 Midland, TX, USA

    Helpful (1) (0)

  • 5/5

    September 20, 2011

    much better shiffiting now

    Shifts a lot more smooth now. Even seems to have reduced the minor vibration problems i had at high r.p.m.'s. Filled it through the top from shifter while leaving the fill plug open and it made life so much more easy on me. Put the shifter back on with the Shifter Base & Handle Gasket that Americanmuscle.com here has and lo and behold, no leaks. The only mistake I made was I forgot the T5's take about a Qt. less than the T45's, so now I have an extra Qt. sitting in the tool box. Remember people, do it your self means DO YOUR RESEARCH before you even think about buying the parts you need/want. Would recommend this to anyone.

    JTwitch101

    Year: 1999 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 1 El Monte, CA

    Helpful (2) (0)

  • 5/5

    February 16, 2011

    Royal Purple Synchromax

    I recommend using this transmission oil in your t-56. American muscle is where to buy this product.

    Guillermo

    Driving Style: Daily Driver

    Helpful (2) (0)

  • 5/5

    June 08, 2010

    oyal Purple Synchromax

    well i totally noticed the smooth shifting thats what i enjoyed the most great stuff.

    LEO

    Helpful (5) (2)

  • 5/5

    March 08, 2010

    Good stuff

    Awesome product, shifts a lot smoother. Pair this up with the applicable gasket to your transmission and you have the perfect excuse to hide in the garage from the wife and improve the drivability of your Stang.

    Oh For Pony

    Helpful (26) (5)

  • 5/5

    August 08, 2011

    Shifts like hot butter

    I put some of this in at 70k it was definitely an improvement but it was also the first transmission fluid change. The improvement was noticeable but I can't say that it was from the royal purple and not from it just being fresh tranny fluid. I have a hurst shifter and with this fluid you can feel every single movement in the shift. I love it that way. I feel more connected like I know how the car is behaving. I would recommend this to anyone else.

    Jared

    Year: 2006 Model: GT Driving Style: Street / Strip

    Helpful (6) (0)