While we are usually not a fan of additives, Lucas Transmission Fix deserves considerations when it comes to fixing certain transmission problems. Is your automatic transmission is giving you any of the following problems?
- Whining, Humming
- Leaking Seal
- Hard Shifting
Most likely you have been recommended to try Lucas Transmission Fix. It is meant to fix automatic transmission problems listed above. Lucas Transmission Fix is one of the most popular transmission additives, and if you are having transmission problems, you most likely have heard of it.
Some may swear by this additive, even go as far as to call it "miracle fluid." Others will never add this additive to their transmission. Bottom line is that if you have just been quoted a $2000-$3000 transmission overhaul, what do you have to lose?
Does Lucas Transmission Fix work?
We have used this additive in several cars where the automatic transmission would experience slipping, rough shifting or hesitations; with mixed results. There were times that the additives were able to give us some more time and in other cases, they didn't make a difference. It all depends on the nature of the damage in your automatic transmission. It is better to get a transmission shop to find the root of the problem before you decide try an additive. In some cases the fix may be very simple and in other cases it can be caused by electrical problems not directly related to the transmission. There are transmission additives that are designed for specific problems. You can read more about those alternatives at the end of this article.
Should I use Lucas Transmission Fix?
If you have just started noticing your transmission slipping, banging into gear, hard shifting or seal leaks this is what you should do.
1 - Check the transmission oil level.
If the transmission fluid level is low you may experience several transmission issues such as transmission slipping, hesitation, shuddering, banging into gear and more. It doesn't mean you need a new transmission. You would be better off topping the transmission once in a while than adding additives to your transmission. Perform a transmission fluid and filter change. A clogged transmission fluid filter can cause all the problems mentioned above. So eliminate that possibility first.
2- Lucas Automatic Transmission Fix.
If your mechanic recommends that you need your transmission replaced then it is the time that you try the Lucas Transmission Fix. A transmission additive can in certain cases extend the life of the transmission. We have cases when using Lucas Transmission Fix owners have been able to get another year or two out of a transmission. Your transmission will eventually require transmission to be properly repaired or even overhauled.
You should not continue to drive your car if the transmission is starting to act up. Get it diagnosed ASAP. In some cases, the problem may be something as simple as oil leaking into the electrical connector or the valve body needing replacing. In many cars, the valve body can be replaced without removing the transmission. Either way, you should address transmission problems as soon as possible to avoid further damage. Lucas Transmission Additive can extend the life of your transmission but only if you use it before severe damage is caused to the transmission.
Does Lucas Transmission Work?
Before we answer the question Does Lucas transmission fluid work, we need to understand what Lucas additive is designed to do. Lucas Transmission Fix is a non-solvent formula that is designed to mix with your transmission fluid to stop slip, hesitation and rough shifting in worn transmissions and eliminate seal leaks.
Lucas Transmission Additive is designed to1:
- Eliminate Transmission Hard Shifting
- Stop Transmission Rough Shifting
- Stop Transmission Slipping
- Eliminate Seal Leaks
The Automatic Transmission Fluid (ATF) serves several critical functions. It regulates the pressure in the solenoid and allows shifting; it reduces gear wear, transfers heat and transfers rotation via the torque converter.
How Does Lucas Transmission Fix Work?
Over time seals in your transmission wear out thus allowing transmission fluid to get past the seal and leak. Even though the seal is there to prevent the leak with time, the seal itself can harden and stop blocking leaks that it used to block when the seal was soft and new. Lucas Transmission Fix additive would penetrate the seals and soften them up a little bit. Not only that but Lucas additive will cause the seal to swell some to compensate for any wear and stop the leak.
Does Lucas Stop Leaks?
In our experience, Lucas Transmission Fix can stop seal leaks as long as they are minor. Once the leak becomes major the Lucas Transmission Fix will only be able to slow down the leak but it will not be able to stop the leak. Keep in mind that while Lucas Transmission Fix will stop small leaks, this repair will not last forever. You may notice the leak come back in a few months or after a year depending on the severity of the leak. To properly fix this problem, the worn out seals need to be replaced to eliminate the transmission leaks.
Transmission Slipping, Rough Shifting or Hesitation
In most cases, the transmission slips due to a clogged valve body, worn band, or bad torque converter. Lucas can be useful in freeing up any worn transmission valve body solenoids. It also has friction modifiers which are added to renew transmission bands. While the Lucas additive can improve the friction between clutch plates in can not restore transmission bands that are worn out. If the transmission is in the early stages of damage adding Lucas may help in extending the life of the transmission unless the damage has become severe.
Should I use Lucas Transmission Fix Additive?
Why is Lucas Transmission Fluid so thick?
When you go to add the Lucas Transmission Additive to your transmission fluid, you will notice that it is quite thick and takes a while even to come out of the bottle. The reason why Lucas Transmission Additive is so thick is that it is meant to mix with your transmission fluid. That's why it is best to add the fluid when the transmission fluid is warm.
It is important not to overfill the transmission. We have found that many 10 or 15-year-old cars usually may be on the low side of transmission fluid level, so you may be able to add Lucas without removing any fluid from your transmission. Always check the transmission fluid and make sure to not overfill the transmission. If the transmission fluid is at maximum, you should remove about half a quart then add Lucas transmission additive. You can extract some of the fluid out using a Liquid Transfer/Siphon Hand Pump via the transmission dipstick tube.
Should I add Lucas Additive when Changing Automatic Transmission Fluid?
Have been recommended to add a quart of Lucas Transmission Fix when doing a fluid change? If you have NOT been experiencing rough transmission shifting, hesitation, slipping then we recommend that you don't add Lucas additive.
If you are looking for an additive that will reduce the operating temperature of the transmission fluid or that can make your shifting smoother, then we would recommend Lubegard Automatic Transmission Fluid Protectant. It is designed to provide a long-term wear protection. At the same time, it does not affect the newer electronically controlled transmission components such as the multiple solenoids and sensors inside the transmission.
Top 3 Lucas Transmission Fluid Alternatives
- Lubegard Dr. Tranny Instant Shudder Fix
This is a concentrated friction modifier. Can fix transmission problems related to torque converter shudder. Do not use on Ford Type F or CVT transmissions.
ATP AT-205 Re-Seal Stops Leaks
The ATP Reseal is designed to stop transmission seal leaks. You can even spray the ATP AT-205 Re-seal on any rubber suspension bushings if you have squeaking noise. It can be added to synthetic oils, gear oil, power steering fluid and transmission fluid. It is worth trying if you like to buy time until you get the seal leaks properly repaired. Keep in mind that this is not going to fix a major leak or a damaged seal.
Sea Foam TT-16 Transmission tune Additive
If your problem is sticking valve body this is a good alternative to Lucas Transmission Fix. If you are looking for an additive that will not swell the seals change the viscosity of the transmission fluid, you may want to take a look at the SeaFoam Trans Tune. We would recommend that you do an automatic transmission fluid change once your transmission is back to shifting smoothly. Usually, you should see shifting improve after a few hundred miles.
How to use Lucas Transmission Fix
- Before you add Lucas transmission additive to your transmission, it is important to check the transmission fluid level. You should not overfill the transmission with fluid. Siphon out as much automatic transmission fluid as you plan on adding from the additive. If you are going to add half a quart of Lucas Transmission Fix, remove that much oil from your transmission. If your car is over 10 years old, check the fluid level, it may already be low and you may not have to remove any fluid.
- Warm up your car by driving it around the block for around ten minutes. This is necessary for the transmission additive to mix with your transmission fluid quickly.
- Open the hood and find the transmission dipstick on your car. In most cases the transmission dipstick is yellow. If you are not sure which one is the transmission dipstick, look in your owners manual. You don't want to add Lucas additive to your engine oil.
- Use a long funnel to add the Lucas Transmission Fix fluid. You will notice the fluid flows very slowly due to its high viscosity. Take your time to add Lucas transmission additive. Do not add Lucas transmission additive more than the maximum transmission fluid level indicated.
- Next, you need to measure the transmission fluid level. You can't measure the correctly right away. The Lucas oil is going to stick to the transmission tube so let the car parked for an hour or two.
- Warm up the car by letting it idle in Park for 10 to 15 minutes. Now check the transmission fluid level again. If the level is low, add more fluid. If it is above the high mark, you need to remove some fluid. Transmission should not be overfilled with fluid.
- Drive your car around the block for 20 to 30 minutes to allow Lucas additive to dissolve with your ATF fluid. As you drive around, manuals shift the transmission through the lower gears by placing the gear selector level in the 1, 2,3, D and R positions.
Expert Opinion on Transmission Additives
?Our test data show some additives can provide a brief improvement in, for example, anti-shudder durability, but it?s short-lived and performance quickly drops below industry standards,? said Matt Erickson, AMSOIL Product Manager, Passenger Car.5
Conclusion - Lucas Transmission Fix
Before you add any additives, you should always check the transmission fluid level and add the recommended automatic transmission fluid (ATF).
If your transmission has started to slip, delay shifting, bang into gear, shutter or leak oil, it may be worth trying Lucas Transmission Fix. Lucas additive is not going to fix every possible problem out there. We don't usually recommend additives but if you have been told that your transmission needs to be replaced, it doesn't hurt to try Lucas Transmission Fix. You may be one of the lucky people which Lucas Transmission Fix can help, at least for the time being.
Warning! No transmission additive is going to fix the automatic transmission problems if it has broken internal parts or bands have burned out.
Check Engine Light On
When transmission problems arise, the check engine light can come on. You should always read the check engine codes using an OBD II diagnostic scanner. We would strongly recommend that you use a diagnostic scanner that can also retrieve fault codes from the Automatic Transmission Control unit such as the Launch Creader or Innova ABS/SRS/Engine/Transmission diagnostic scanners. These scanners are very easy to use. Just plug them under the dashboard on the driver's side and within minutes you will have a transmission fault code which will give you a very good idea of what's wrong with your automatic transmission.