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25% Off Online Orders of Select Parts and Accessories. Enter Promo Code FOUND25 in Cart

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25% Off All Online Orders of Select Parts and Accessories
Receive 25% Off Your Online Purchase. Use promotional code FOUND25 at checkout to receive discount. Not valid in combination with any other discounts or promotions. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Excludes the following categories: Tires, Wheels, Batteries, Powerstop Brake Kits, Oil, Antifreeze, Refrigerant, Truck Boxes, Vent Visors, Bug Shields and BRANDS: Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Thule, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, JVC, MSD and BBK Performance. Valid online until 2:59 am EST on 2/27/17. Online orders scheduled for in-store pick up must be completed by closing on 2/26/17 for discount to apply.

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  • Part #: 6512|
  • SKU: 9334508

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    • Synerlec technology provides exceptional load carrying capacity
    • Reducing operating temperatures
PayPal available for online purchases. Major credit cards accepted online and in store. Pay online, in-store or take advantage of our Pep Boys credit card. Learn more and see additional details in cart.

Royal Purple Synchromax Synthetic MTF Quart

Synchromax is a manual transmission fluid that increases performance and the life of your equipment. It improves shifting, reduces gear noise and increases power transfer to the wheels. It also lowers operating temperatures and provides outstanding wear protection for longer transmission life. Synchromax is recommended for manual transmissions that specify an automatic transmission fluid. Its also ideal for 4A—4 transfer cases and motorcycle gear boxes. Synchromax is fully compatible with all types of friction materials. It provides excellent corrosion and oxidation protection without affecting the soft metals commonly found in manual transmission synchronizers. Synchromax is formulated with Royal Purples proprietary Synerlec technology for unsurpassed performance and protection.
  • Synerlec technology provides exceptional load carrying capacity
  • Reducing operating temperatures
  • May used as a replacement to ANY auto transmission fluid in manual transmission applications
  • Ideal upgrade in manual transmissions specifying GM Synchromesh
  • Non-corrosive technology won't attack soft, yellow metals and/or synchronizer materials


Rated 5 out of 5 by 8 reviewers.
Rated 5 out of 5 by Top Notch I have been using all Royal Purple products since they came out. I have had no issues and rolled over 200k on my 04' Silverado. Great replacement fluid for your transfer case. January 18, 2017
Rated 5 out of 5 by Purple Magic 2007 Jeep Wrangler shifts in I really noticed, it's also quitter. ONLY issue...Man this stuff stinks..... January 13, 2017
Rated 5 out of 5 by Excellent product I use have been using Royal Purple products for all aspects of my vehicles for years so I am a bit biased but the sale at Pep Boys cannot be beat. Picked up 3 quarts for less than $40.00. Transmission has over 150,000 miles and it is still going strong. November 22, 2016
Rated 5 out of 5 by Great product!!! I use it on al my BMW's manual transmission. It work great on high temps and improve shifting. October 28, 2016
Rated 5 out of 5 by Worked as advertised At 45,000 miles it was time to change the MTF in my 08 Mustang with a 5 speed tremec gearbox. I decided to try Royal Purple Synchromax instead of regular type F automatic trans. fluid. The Synchromax worked as it was advertised on the label. The transmission seemed to be quieter than before, but the biggest thing I noticed right away was the ease going through the gears. It was worth the few extra dollars over the conventional ATF. October 24, 2016
Rated 5 out of 5 by worth the upgrade Transmission and transfer case are shifting like a hot knife thru butter..... June 12, 2015
Rated 5 out of 5 by So far so good. Easy to install. Shifting improved. June 11, 2013
Rated 5 out of 5 by Love the product I have a 1998 ford ranger with a 5 speed manual transmission and had original ATF instead of MTF and since switching to royral purple MTF for my transmission and my transfer case. I have noticed a major difference in the shifting speed and the way it feels to the transfer case running smoother for all my 4x4 advantures needs. All in all if you got Manual tranny you will love this stuff and done let the price scar you away because its well worth it. March 13, 2013
  • 2017-01-22 T16:15:52.490-06:00
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