Super Transmission Fix (1416)

Super Transmission Fix


  4 Reviews


The days of needing a specialized transmission stop leak formula are over. With modern chemical technology advancements, it’s now possible to have a transmission treatment that handles any type of transmission. This type of product is not easy to engineer. It requires years of experience, and a ridiculous amount of lab time. It requires a deep understanding of transmission technology, common problems, and what root causes lie behind these problems. We did the research. We put the time in. The result is Bar’s Leaks Super Transmission Fix, the only transmission treatment that handles just about any type of transmission If you have a transmission that’s suffering from leaks, slipping, jerking, hard shifting, shudder or just plain poor shift feel, Bar’s Leaks Super Transmission Fix is the only bottle you need to optimize transmission performance.


Fill hose included for easier application in some vehicles. Shake well. Add Super Transmission Fix to transmission per dosage chart on package. Consult owner’s manual if needed for transmission dipstick/fill plug location. Do not overfill. Drive vehicle normally. Depending on the transmission problem, results will be immediate or noticeable within 250 miles or 3 days of driving. In transmissions with seriously damaged components, a second treatment may be required. In this case, it is suggested that the fluid and filter be changed before adding a second bottle.

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Bar’s Leaks Super Transmission Fix is an advanced, synthetic-blend treatment for transmission fluid, seals, metal surfaces, bands and clutch plates. Global domestic/import formulation can be used in all automatics, manuals, CVTs (Continuously Variable Transmissions) and DCTs (Dual Clutch Transmissions).

Bar’s Leaks Super Transmission Fix is an advanced formula that includes:

  • Seal conditioners stop current leaks and prevent future instances by protecting and reconditioning seals
  • Extreme pressure/anti-wear agents provide better metal-to-metal friction properties to stop slipping, jerking, hard shifting, shutter/shudder, which improves shift feel and provides better driving comfort
  • Advanced cleaning detergents include dispersants and antioxidants to remove sludge and varnish from metal parts
  • Performance additive booster renews worn bands, controls fluid degradation caused by high temperatures, reduces noise, and prolongs the useful life of your transmission

These additive packages stop slipping, rough shifting, seal fluid leaks and reduce noise. Bar’s Leaks Super Transmission Fix renews worn fluid and restores older and high-mileage transmission performance. Very effective and safe to use on regular automatic (step, overdrive transmission, 2WD, 4WD, AWD), CVT (Continually Variable Transmission), DCT (Dual Clutch Transmission), ECT (Electronically Controlled Transmission), manual (stick shift), transaxle (front wheel drive/all-wheel drive).

Super Transmission Fix helps with small leaks (for example, if you need to add fluid 1x per month), medium leaks (if you need to add fluid 1x per week), slipping/hesitation, rough/hard shifting, noise/whining, transmission warning lights and other fluid-related problems.

All our renowned maintenance and repair solutions are the result of over 70 years of automotive chemical research. Since our beginnings in 1947, we’ve been known for maintaining the performance of consumer, commercial, OEM and even military applications. When you choose Bar’s Leaks, you can depend on proven performance at a reasonable price, backed by a family-owned company that knows aftermarket chemical automotive solutions better than anyone else in the world.


Our technology and research changes as the automotive industry evolves. We have become synonymous in the automotive world with maintenance and leak repair, from consumer to professional situations, for any budget, any level of installation expertise.

Engineered and 100% made in the U.S.A., just an hour northwest of Detroit, Bar’s Leaks formulas are manufactured by a family-owned team whose mission it is to make leaks and preventable automotive problems a thing of the past. With hundreds of millions of bottles sold in our company’s history, you’re in the right place.

Discover where to get Bar’s Leaks Super Transmission Fix at a retailer near you.

Customer Reviews

  4 Reviews
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 4 reviews
 by C.J. Welsh
Thanks to your amazing product

Gentlemen, you have produced an excellent and superior product. About a month ago I took my 2016 Nissan Rogue to the local Nissan dealer, Alan Jay Automotive for a complete diagnostic as my wife noted that the car was not shifting right and sounded like it would momentarily skip a gear. After the diagnostic and $150 later they said, "Oh you need a new transmission and that will be $1,700. I said "No Thanks", paid the bill and left. I got to thinking about something a mechanic friend told me a few years back and decided to try a product for the transmission and an extensive search I came upon your Super Transmission Fix. I'd used Bars Leak in my radiators years ago and was familiar with the name. To make a long story short I added one bottle to my transmission and after a day or two of driving, I was amazed how smooth the transmission was working. Not bad savings $12 versus $1,700. Thanks to your amazing product.

 by Rich H.
Nothing but good things to say

Over the years I have used several of your products and will continue to do so as needed. I have been very happy with the results I have gotten from your products. My latest use of BAR'S LEAKS was in my 1997 Plymouth Grand Voyager with 192,000 miles. My transmission had a leak. I don't know where it was leaking from, but I had to add a bit of fluid EVERY day. After a couple months of doing this, I thought to myself, "screw this, it's BAR'S time!"  I bought a bottle of your Super Transmission Fix and it worked like a champ. It's been 2 or 3 months and I still haven't had to add any fluid. I have nothing but good things to say about BAR'S and do share my experiences with friends. Keep up the great work and thank you.

 by James C.
Really Super Transmission Fix

2007 Ford Escape Hybrid CVT with 150K miles. Changed fluid and added this product for normal maintenance. WOW! Trans stopped whining which seemed to be a normal noise since purchase. Shifting in and out of hybrid mode was much smoother and quieter. Fuel economy improved dramatically. There must have been internal slipping that was undetectable in this CVT. I'm highly impressed!

 by Jaime J. - Oshkosh, WI
You made this single dad happy

Hello, I just wanted to write and tell you how thankful I am for your product! I have a 07' Pontiac Grand Prix and have been having issues with the transmission slipping for some time now. Unfortunately from online reviews I went with Lucas' transmission fix. That didn't do a thing! So yesterday I decided on your Super Transmission fix & noticed results INSTANTLY! I couldn't believe it! I just got back from dropping my son off at school and am still amazed how there's no slipping or lagging like before. Wish I would have went with your product a year ago! If you need any reviews or anything from me please let me know. I'm an actual customer who's very happy! Being a single dad raising my son full time, I was worried about paying for a new transmission. Now I can rest easy that this will hold me over for awhile until I can afford a new vehicle. So thank you again!!!

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