The 9 Best Transmission Additives (2022 reviews)

transmission additives
.
It is important to have the best transmission additive. We are here to help you choose the best one for your needs from all the best available products in market today.

Our review process:

Our Top Picks:

Best Overall:
Buy: Prolong Super Lubricants Transmission Additive
READ REVIEW

Best With Mercon:
Buy: Sea Foam Transmission Additive
READ REVIEW

Best For Hondas:
Buy: Zmax Transmission Additive
READ REVIEW

Best For High Performance:
Buy: Hot Shots Secret Transmission Additive
READ REVIEW

Best For Power Steering:
Buy: Lubegard Transmission Additive
READ REVIEW

Best With Smooth Shifts:
Buy: Xado Transmission Additive
READ REVIEW

Best For Safe Handling:
Buy: Crc Transmission Additive
READ REVIEW

Best For Great Price Amazon:
Buy: Atp Automotive Transmission Additive
READ REVIEW

Best For Noise:
Buy: Bestline Lubricants Transmission Additive
READ REVIEW

Best Overall: Prolong Super Lubricants Transmission Additive

Prolong Super Lubricants Transmission Additive
Buy on Amazon

The Prolong Super Lubricants Transmission Additive should be able to handle its purpose and duties with ease. The prolong super lubricants transmission additive is designed for smoother shifts and it allows for high speeds. Make sure this fits by entering your model number. And, it features engineering designed to treat metal surfaces through a molecular and chemical process.

The additive is compatible with Mercon v and it is unbeatable. Most importantly, the prolong super lubricants transmission additive features a formula that promotes smoother manual shifts and helps restore responsiveness in automatic transmissions.

Most customers agree that the additive can be used in a 2011 jeep grand Cherokee with a 5.7 hemi with a 5 speed auto. In addition, a few also found that the additive is one of the most common fluids on the market. And, they also found that this stuff is like a magic transmission treatment. Overall, at the price, they believe that they got a steal of a deal with it.

Top Customer Quotes:
  • This includes a formula with anti-friction metal treatment technology.
  • This does shift noticeably smoother.
  • This is erratic and it is great for many other lubricants.
  • This offers a 1 gallon size of transmission fluid for.

Best With Mercon: Sea Foam Transmission Additive

Sea Foam Transmission Additive
Buy on Amazon

The Sea Foam Transmission Additive is suitable and reliable and fits well with your daily use. The sea foam transmission additive has go traffic, controls moisture and is suitable for low speeds. Make sure this fits by entering your model number. In addition, it has added another bottle and it is compatible with Mercon v.

The additive is much more, allows for high speeds and it is safe for conventional. Most importantly, the sea foam transmission additive is shifted much better and it works as advertised.

Almost all buyers agree that the additive is worth every penny and then some. And, a few also found that the additive is used to be able to induce it easily by cruising at exactly those speeds, but no more. And, a few strongly agree that the additive is a 100% fix, but so far it's about 90. Without any doubt, this product passed the test and had very satisfied buyers eager to share their experience.

Top Customer Quotes:
  • This does nothing to the filter media.
  • This is worth a try before junking the car.
  • This has dramatically changed how the car runs.
  • Amazing stuff, look no further, this is the only transmission additive that works.

Best For Hondas: Zmax Transmission Additive

Zmax Transmission Additive
Buy on Amazon

The Zmax Transmission Additive is satisfactory and appropriate and fits well with your daily purpose. The zmax transmission additive works so far and it gets better mileage. Improve performance by adding the formula to your transmission fluid to reduce slippage and rough shifting. Also, it is easy to use, have added another bottle and it has 215k miles.

Most importantly, the zmax transmission additive cleans varnish for smoother shifting and lubricates bearings, gears, and the hydraulic system.

Most customers opine that the additive is already shifting snoother. In addition, they also found that the additive is compatible with stock trans fluids. In addition, a few say that the oil additive is added at a fresh oil change, so it too runs for the maximum amount of time, until the next oil change, when it is to be added again. Therefore, buyers were eager to recommend it to friends and families.

Top Customer Quotes:
  • This makes changing the gears so smooth.
  • The additive does not negate the need for normal fluid and filter changes.
  • Pour into transmission fluid to keep the gears lubricated and in top condition.
  • This is proud to be the official micro-lubricant of speedway motorsports.

Best For High Performance: Hot Shots Secret Transmission Additive

Hot Shots Secret Transmission Additive
Buy on Amazon

The Hot Shots Secret Transmission Additive is suitable and reliable and fits well with your daily purpose. The hot shots secret transmission additive allows for excessive noise and it added a bottle. Make sure this fits by entering your model number. Further, it reduces transmission operating temperatures with high performance ester formula.

The additive has traffic and it is designed for smoother shifts. Lastly, the hot shots secret transmission additive is designed for top - notch performance and it makes a huge difference.

Almost all buyers found that the additive is shifting smoothly again and will update if anything changes. Moreover, a few strongly agree that the additive is absolutely safe & effective in your specific transmission, thanks. In addition, they also found that the additive is a sticking shift solenoid or valve.

Top Customer Quotes:
  • This is erratic, is easy to use and it reduces friction.
  • This will not restore worn clutch material.
  • This will work overtime to clean them and reduce sticking.
  • This can be used in a "95 chevy blazer 4.3 v6., automatic trans.

Best For Power Steering: Lubegard Transmission Additive

Lubegard Transmission Additive
Buy on Amazon

If you often find yourself confused about appropriate and satisfactory additive,s Lubegard Transmission Additive should be your first option for buying. The lubegard transmissionadditive is a five - time concentrated friction modifier formulated specifically for eliminating transmission shudder problems instantly. Formulated specifically to instantly eliminate torque converter lock - up shudder. Further, this reduces noise and it is compatible with Mercon v.

Most importantly, the lubegard transmission additive is for the best overall performance and long term transmission benefit.

Almost all customers opine that the additive does ...this stuff is gold. In addition, they say that the additive is made to fix the shudder in your transmission. Further, a few strongly agree that the additive can be used in a gm 8 speed automatic, has 2 sets of clutch plates, works great, The No. In short, at the price, they believe that they got a steal of a deal with it.

Top Customer Quotes:
  • It has been about a month now since it was added.
  • This will work in any transmission with a shuddering feeling.
  • This can be used by more professional transmission technicians.
  • This provides four times less wear than regular.

Best With Smooth Shifts: Xado Transmission Additive

Xado Transmission Additive
Buy on Amazon

The Xado Transmission Additive is capable of outshining several other additives featured in this list in overall features for the price point. The xado transmission additive is great with smooth shifts, allows for smooth shifting and it makes a huge difference. Make sure this fits by entering your model number. Also, the additive is convenient to use and it is good for low speeds.

Above all, the xado transmission additive protects them from extreme heat and protects them from future wear.

Most buyers opine that the additive can be used in conjunction with Lubegard 19610 dr. tranny instant shudder fixx. Further, a few say that the additive has been relatively well cared for. And, a few strongly agree that the additive can work with any hydraulic equipment in any unit.

Top Customer Quotes:
  • This is not broken but simply worn.
  • This comes out as a paste like substance and not a liquid.
  • This has traffic, works like a miracle and it reduces noise.
  • This is to drive it without worrying about grinding the gears.

Best For Safe Handling: Crc Transmission Additive

Crc Transmission Additive
Buy on Amazon

Not everyone likes to purchase additives for their daily purpose, but the Crc Transmission Additive would be an anomoly. The crc transmission additive is formulated to repair leaks in automatic transmissions, power steering, & hydraulic systems, and can be used as preventative maintenance when added to transmission fluid. The Manufacturer says: Our formula prevents leaks caused by aged seals & gaskets. Further, the additive is not compatible with CVT or manual transmissions.

Above all, the crc transmissionadditive shifts smoothly, allowing for safe handling and it added a bottle.

Almost all customers opine that the additive will fix the tranny issue, but it might. Also, they say that the additive is 44 degrees this morning. Overall, many customers have used the crc transmission additive for more than a few months without any problems, and it shows no sign of giving up.

Top Customer Quotes:
  • The Manufacturer says: our sealants provide an effective alternative to costly repairs and parts replacements.
  • This is nothing short of a miracle.
  • This can be used on power steering fluids too, by the way.
  • This is a great Subaru Forester's.

Best For Great Price Amazon: Atp Automotive Transmission Additive

Atp Automotive Transmission Additive
Buy on Amazon

Atp Automotive offers a variety of additives for personal choice and yet maintains quality in all the variants. The Atp Automotive Transmission Additive is a full synthetic atf additive that converts conventional dex/merc atf to a highly friction modified fluid. Make sure this fits by entering your model number. Further, this comes with atf, offering instant results with no soak-in period and provides compatibility with hfm applications such as chrysler atf +3/+4, honda z1, toyota type t, mitsubishi diamond & nissanmatic. Finally, the atp automotive transmission additive allows for smooth shifting and it is designed for a great price on amazon.

Almost all buyers found that the additive is in neutral as the directions said. Moreover, they say that the additive works well on older honda transmissions. Further, a few say that the fluid improves the lubrication ability of dexron iii or mercon transmission fluids and this reduces the heat generated in the transmission. With no doubts, this product passed the test and had very satisfied buyers eager to share their experience.

Why We Like This:
  • 10oz bottle to treat one transmission.
  • Blends with fluid for immediate effectiveness.
  • Incorporates synthetics to improve transmission performance, reduce heat and wear.

Best For Noise: Bestline Lubricants Transmission Additive

Bestline Lubricants Transmission Additive
Buy on Amazon

Not everyone likes to purchase additives for their daily purpose, but the bestline lubricant transmission additive would be anomoly. The Manufacturer says: Using diamond nano-particles technology, our additive provides anti-wear and antifriction properties that are superior to plain transmission repair fluid. Moreover, the additive can be used in cars, race engines, motorcycles, and any other vehicles. In short, with a 4.8 rating and more than 320 buyers, the bestline lubricant transmission additive stands as the best choice.

In short, most customers call the additive functionally comfort, and no one questions it.

Why We Like This:
  • Manufacturer says: our product also conditions all seals and o-rings for optimized effectiveness.
  • One of the newcomers and featured product.