Best Transmission Additive: What Features To Look For

Best Transmission Additive

In the past few years, transmission additives have taken off in popularity. These products work by treating your transmission fluid with chemicals that help clean the inside of your transmission and improve the efficiency of your clutch. The most popular transmission additives are things like Automatic Transmission Fluid (ATF) or Automatic Transmission Fluid Plus (ATF+). In this article, we will discuss these popular additives and then go over what features you should be looking for when purchasing one.

Quick table with our top 3 picks:

Product
Hot Shot's Secret - HSSTSE32Z Shift Restore Automatic Transmission Additive 32 Fluid Ounce Bottle
Lucas LUC10009 Transmission Fix 24 oz., Brown (Packaging May Vary) , White
Lubegard 19610 Dr. Tranny Instant Shudder Fixx 2 Ounce 2 Pack
Hot Shot's Secret - HSSTSE32Z Shift Restore Automatic Transmission Additive 32 Fluid Ounce Bottle
Lucas LUC10009 Transmission Fix 24 oz., Brown (Packaging May Vary) , White
Lubegard 19610 Dr. Tranny Instant Shudder Fixx 2 Ounce 2 Pack
Product
Hot Shot's Secret - HSSTSE32Z Shift Restore Automatic Transmission Additive 32 Fluid Ounce Bottle
Hot Shot's Secret - HSSTSE32Z Shift Restore Automatic Transmission Additive 32 Fluid Ounce Bottle
Product
Lucas LUC10009 Transmission Fix 24 oz., Brown (Packaging May Vary) , White
Lucas LUC10009 Transmission Fix 24 oz., Brown (Packaging May Vary) , White
Product
Lubegard 19610 Dr. Tranny Instant Shudder Fixx 2 Ounce 2 Pack
Lubegard 19610 Dr. Tranny Instant Shudder Fixx 2 Ounce 2 Pack

Top 10 Best Transmission Additive Reviewed

SaleBestseller No. 1
Lucas LUC10009 Transmission Fix 24 oz., Brown (Packaging May Vary) , White
  • Lucas Transmission Fix Stops Slip, Hesitation, Rough Shifting In Worn Transmissions And Completely Eliminates Most Seal Leaks
  • Fit Type: Universal
  • Can be added to existing fluid without draining any out
  • Improves shifting
Bestseller No. 2
Lubegard 19610 Dr. Tranny Instant Shudder Fixx 2 Ounce 2 Pack
  • The original transmission shudder fix
  • A concentrated friction modifier formulated specifically for instantly eliminating torque converter lock-up shudder
  • Provides four times less wear than regular ATF
  • For use in any automatic transmission fluid (not for use in Ford Type F or CVT applications)
  • Voted top product by transmission professionals
SaleBestseller No. 3
Hot Shot's Secret - HSSTSE32Z Shift Restore Automatic Transmission Additive 32 Fluid Ounce Bottle
  • Hot Shot's Secret Shift Restore is engineered to safely dissolve the harmful gum and varnish that forms over time on the surface of precision transmission component
  • Reduces transmission operating temperatures with high performance ester formula
  • Our Shift Restore formula acts as a high-quality transmission lubricant that serves as a hydraulic fluid, lubricating fluid and heat transfer fluid; reduce the coefficient of friction and prevent the critical engine parts from overheating
  • Shift Restore's formula is designed to instantly attach itself to all of your transmission's metal parts, preventing deposits from varnish and metal-to-metal contact
  • Reduces transmission wear, erratic and inconsistent shifting, hesitation and rough operation, and excessive noise and vibration
Bestseller No. 4
Lubegard 60902 Automatic Transmission Fluid Protectant, 10 oz.
  • Prevents overheating, reducing elevated operating temperatures up to 40 degrees Farenheit - Optimizes total transmission performance
  • Eliminates transmission fluid foaming and oxidation and reduces wear throughout the transmission
  • Eliminates clutch chatter and torque converter shudder; Softens and modifies harsh shifts making them quicker in duration
  • Extends fluid life / Raises the thermal and oxidative stability of the fluid
  • Only protectant that increases the fluid’s ability to transfer heat / Protects new seals and permanently restores older seals to a like-new condition, without adverse side effects
SaleBestseller No. 5
Bar's Leaks High Mileage Transmission Repair, 16.9 Fl Oz
  • Restores performance
  • Stops slipping and prevents lazy shifts
  • Quiets noise
  • Stops leaks
  • Conditions seals and o-rings
SaleBestseller No. 6
Liqui Moly 20040 ATF Additive , 250 ML, 5135
  • Prevents oil loss
  • Regenerates seals, cleans and protects
  • Improve steering characteristic and reduced the noise
  • Damps down shifting operations and protects from wear
  • Lowers repair costs and lengthens the service life
Bestseller No. 7
Lubegard 63010 Platinum Universal ATF Protectant, 10 oz.
  • The Original Universal ATF Protectant that Eliminates ATF Confusion and the need to stock multiple ATF's - Dramatically reduces friction and wear on metal parts and internal components
  • Will not alter the crucial sulfur balance in your transmission fluid, Prevents overheating, Will not harm yellow metals, Inhibits fluid oxidation and foaming
  • Contains patented Synergol TMS Technology, a synthetic molecule that tightens the shift cycle without losing the friction modification at lockup, which eliminates shudder
  • Extends fluid change intervals, Protects and restores seals for optimum performance, Conditions and restores seals and o-rings
  • Does not contain any harmful components such as zinc (ZDDP)/ash, etc., like other competing products, Frees stuck valves and keeps them free, Ensures proper shifts
SaleBestseller No. 8
BG ATC Plus
  • BG ATC Plus enhances properties of both new and used automatic transmission fluid.
  • It improves fluid oxidation stability, thereby prolonging fluid life and the life of the transmission.
  • It prevents leaks by conditioning hardened seals-keeping them soft and pliable.
  • BG ATC Plus helps control transmission shudder' retards formation of sludge and varnish deposits and prevents foaming.
SaleBestseller No. 9
Prolong Super Lubricants PSL15000 Transmission Treatment - 8 oz.
  • Includes a Formula with Anti-Friction Metal Treatment Technology
  • Features Engineering Designed to Treat Metal Surfaces Through a Molecular and Chemical Process
  • Offers Molecules that Interact with Metal Surfaces and Chemically Bond to Create a Protective Layer that Reduces Damaging Friction and Heat
  • Offers to Treat the Metal Surfaces of Both Standard (Manual) and Automatic Transmissions
  • Features a Formula that Promotes Smoother Manual Shifts and Helps Restore Responsiveness in Automatic Transmissions
Bestseller No. 10
XADO Revitalizant EX120 Conditioner for Automatic Gearbox & CVT Tiptronic Transmission Oil Treatment Additive (Box, Syringe 8 ml) Protectant Fluid - Restore Your ATF Metal Parts from Wear (Automatic)
  • Rebuilds And Restores Metal Parts And Protects Them From Future Wear.
  • Anti Friction Modifier. Eliminates Surfaces Defects & Protects From Extreme Heat
  • Stops Transmission Shudder, Reduces Noise & Vibration. Ultimate Stop Slipping Additive
  • Increases Performance Reliability And Prolongs Service Life Of Control Gears
  • Universal for Automatic, CVT, Tiptronic, Manumatic, Semi-Automatic Transmission

5 Things To Consider Before Buying The Best Transmission Additive

  1. Does The Product Have A Warranty?

Do the manufacturers have a warranty on the product that you are considering buying? If they do not, this could be a sign that they are not confident enough in their product to offer a warranty. A warranty on a transmission additive can be an indication that the manufacturer believes their product is strong enough to stand up to long-term use.

  1. How Long Has The Manufacturer Been In Business?

Transmission additives have been around for many years, so you want to make sure that the manufacturer has been around for at least as long as your vehicle has been on the road. The longer a company has been around, the more likely it is that it will still be producing high-quality products when compared with newer companies.

  1. Has Anyone Else had Any Problems With This Product?

If you have read any reviews of this product, chances are that someone else has had some problems with it at some point in time. If there is no mention of people having problems with it in any reviews, then it’s probably safe to assume that this company has a solid reputation and produces quality products that won’t cause any issues for your transmission.

  1. What Is The Price Of This Product?

The price of this product will vary depending on what features it has and what other customers think of it. Asking people who own similar vehicles or who have used this company’s products before is always an option when trying to determine how much something should cost.

  1. What Is The Best Way To Use This Product?

There are a variety of ways to use these products, but you will want to find out what the manufacturer recommends and whether or not you should follow that recommendation. If they do not offer any recommendations, then it’s up to you whether or not you want to follow their instructions.

The Bottom Line

Transmission additives can be a great way to extend the life of your transmission, but you need to make sure that you buy a product that has been proven to work. If you are going to invest in one of these products, make sure that you do your research and find out as much as possible about the company and its products before making a purchase.

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