What is the best power steering stop leak?

Author: Evelyn

Jul. 08, 2024

Best Power Steering Stop Leaks of - The Drive

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If your power steering has ever gone out, you&#;ve likely been shocked to discover just how much more difficult it is to maneuver your vehicle in the right direction. Modern cars need their power steering systems &#; otherwise, you could find yourself struggling to get to the side of the road when your steering fails or locks up. However, instead of crossing your fingers and hoping your power steering continues to operate smoothly, you can use a power steering stop leaks fluid for a little peace of mind.

These additives, which are mixed right in with your power steering fluid, can help prevent problems that cause loss of power steering capability. If your power steering system is leaking, leaving behind oil puddles under your car, or your steering system&#;s warning light is illuminated on your dash, you need to add power steering stop leaks fluid now. It could keep your vehicle drivable and safe &#; and it can help you avoid costly repairs. Check out our buyers guide to read more about the best options available.

Summary List of Best Power Steering Stop Leaks

Our Methodology

We took our sweet time reading up on all of the top options out there for power steering stop leaks. There are many solutions to choose from, but the ones on here all received great ratings from professionals and consumers. We then organized our list by price, quantity, the amount of cleaning and anti-corrosion additives, and more. For more on how we select products, read this.

Best Power Steering Stop Leaks: Reviews & Recommendations

Best Overall: BlueDevil Products Power Steering Stop Leak

The BlueDevil Power Steering Stop Leak fluid makes it easy to put an end to leaking power steering fluid. The solution is made up of the company&#;s &#;Pour &#;n Go&#; formula for simple and quick application to get you back on the road faster without the steering wheel tightening up. The liquid fills the spots where leaks are frequent and improves the condition of the power steering fluid and reservoir.

The formula also seals rack and pinion systems as well as differentials. A great feature about this power steering stop leak is it can be used on both diesel and gasoline engines. The liquid also works to recondition hardened or worn rubber seals, loosening them and making them more pliable. 

While it may be quick and simple to pour into the power steering fluid reservoir, it may take a few days until you see results. It&#;s not a &#;pour and wait a few minutes&#; kind of solution. You&#;ll need to drive your car for a few miles to see if the steering wheel continues to lock up or offers more freedom of movement.

Best Value: Prestone AS262 Power Steering Fluid with Stop Leak

Prestone AS262 Power Steering Fluid with Stop Leak is a product that works great at not only preventing leaks but also stopping them from happening while you drive. The manufacturer calls it a high-grade oil and a multitude of additives to strengthen it for a guaranteed no-leak, smooth operation.

This power steering stop leak works well in any temperature or climate; it won&#;t clog up in winter months, or make the reservoir sticky in the summer. One of the best benefits of this compound is it corrodes rust and comes with an anti-foam agent so you don&#;t get that rush of foam coming back at you while filling the reservoir.

It is on the less expensive side when it comes to power steering stop leaks, and that&#;s not always a good thing. While it does a great job at filling leaks, it works best on smaller holes. So, if you want to fill larger leaks, you&#;ll want to invest in more of the product.

Best High-End: Lucas Oil Power Steering Stop Leak

Lucas Oil Power Steering Stop Leak is a solvent-free solution &#; and though it comes in a smaller container, it does a great job at stopping leaks. It combines with gas-extracted additives with special oils to fill holes and prevent loss of power steering fluid.

Another great feature of this power steering leak stop is it fights to prevent and reduce slack, squeals, and hard spots in worn rack and opinions. That gets rid of the annoying groan of your steering wheel and gives you a more pleasant time driving. The added components make it especially great for older cars since the high-quality additives break down rust and corrosion and fill leaks quickly.

While the saying &#;great things come in small packages&#; makes sense with this power steering leak stop, the size of this bottle is also a bit of a negative. It may only last a few weeks, leaving you to buy more bottles that are more expensive than other brands.

STP is a well-known manufacturer for car enthusiasts, and STP Power Steering Fluid & Stop Leak helps ensure your steering wheel won&#;t lock up on you when you need it most. The fluid protects against everyday wear and tear and uses a 2-in-1 compound to get every seal in working order again.

The liquid also revitalizes dried, hardened, and shrunken seals with its special formula conditioner. Another benefit of this particular fluid is it is completely compatible with most power steering fluids. You may also save some cash if you buy online rather than at the store. 

However, it may only be good enough to repair small leaks as opposed to larger ones. You may also end up needing multiple bottles as the container is on the small side.

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If you&#;re looking for a good high-quality power steering stop leak from Bar&#;s Leaks, consider the company&#;s Grey offering. While you will only get an 11-ounce bottle, the price is certainly worth it, as is the fluid. This power steering repair is reliable and effective on small leaks and even some larger ones.

 It stops and seals leaks, restores O-rings, and works with all other types of stop leak fluids. One bottle treats up to 3 quarts of fluid. 

However, it doesn&#;t work all that quickly. It may take a few applications or a few hours before you see any significant results. You may want to stock up, as the bottle is small and you may end up using a lot.

Our Verdict

If you need a great power steering stop leak fluid for your car, we recommend checking out BlueDevil&#;s Power Steering Stop Leak . However, you can save some cash and still get one of the best power steering stop leak solutions we found with Prestone&#;s AS262 Power Steering Fluid with Stop Leak.

FAQs

You&#;ve got questions. The Drive has answers.

Q: Does this product act like normal power steering fluid?

A. While many are a mix of power steering fluid and stop leak fluid, not all will be combined together. It&#;s best to get a separate bottle of power steering solution to use after pouring in the stop leak fluid. 

Q: Can I pour the solution directly into the power steering reservoir?

A. Many products allow you to pour the liquid in without emptying the contents beforehand. However, there are some brands of power steering stop leak fluid that will have you empty the previous liquid before filling it with the new solution. Read the bottle carefully before applying.

Q: Is this a permanent fix to leaks?

A. While power steering stop leak fluids may seem like a permanent solution to a problem, they only last a short amount of time. To truly fix a leak for good, you will need to take the car to a mechanic to get a better understanding of the leak.

Q: Can you drive a car with a power steering leak?

A. Technically, you&#;ll be able to continue driving your car while leaking power steering fluid for a while. However, as the fluid leaks out and isn&#;t replaced, the pump dries up &#; and that&#;s when your steering locks up, leaving you unable to move your vehicle without brute force. It&#;s better to take action as soon as you suspect a leak rather than wait. Waiting too long could leave you stranded or with costly repairs.

Q: Is power steering stop leak bad for your car?

A. As long as you choose a power steering stop leak product that&#;s suitable for your car and its power steering system, it&#;s perfectly safe to use. Damage and potential problems only happen when you choose an incompatible product. 

BlueDevil Products Power Steering Stop Leak - 8 ...

**READ 1 YEAR UPDATE AT BOTTOM OF REVIEW**
**READ 20 MONTH UPDATE AT BOTTOM OF REVIEW**
**READ 40 MONTH UPDATE AT BOTTOM OF REVIEW***

Original Review written December :
I do all my work on my car myself, I also own 8 different cars. I have an in-floor hydraulic lift in my garage... So, I recently installed a new rack, high and low pressure lines, and a new pump in a Pontiac Grand Prix GXP. I had a slight leak from a seal near the pump, I checked everything and could not figure out what was wrong as the vehicle seemed to only leak while running. I turned to a stop leak as I knew the leak was probably coming from an O-Ring and I didn't have the time to remove and replace every single seal.

I tried three fluids; here is a rundown for how each fluid worked....

Prestone:

Prestone AS263 Power Steering Fluid with Stop Leak - 32 oz.

: Only $4 at Wal-Mart, cheap, simple, probably a great fluid, won't do **** for stopping a leak. After pouring in over 2, 32oz bottles, I moved onto other stop leaks. Next try was the Lucas...

Lucas:

Lucas Power Steering Stop Leak 12 oz.

: I love Lucas products, as their products have normally worked before, especially the

Lucas Heavy Duty Oil Stabilizer ()

. I thought I would give Lucas a try. Thick fluid, the bottle says results are normally immediate, yet may require two bottles. Mind you, each bottle costs about $10 and is 12oz. I tried two bottles over the period of one week, following all the directions. At the end of this week, I still had a leak. Luckily, Lucas has a money back guarantee, and after the Lucas failed, I was glad to utilize this guarantee. Although Lucas failed for me, made my pump whine worse than as if it was empty, and temporarily stained my garage floor, I got my money back. Skip Lucas for the stop leak.

Bar's Leaks:

Bar's Leaks Power Steering Repair - 16 oz.

: Same viscosity as regular power steering fluid. Thought maybe the mixing of the two fluid was the answer. Nada!! Stained my garage worse than Lucas (Knowing how to get a stain out helps...brake fluid and baking soda were my friend through this ordeal). No money back guarantee. I should've just added water to the reservoir, maybe that would've worked better than Bar's and also cost less. Don't waste your money here.

After three other failed stop leaks, I thought I would have to waste even more time that I didn't have to fix the damn leak.

I turned to Google, searched "Best power steering stop leak" and every forum lit up with the words "BlueDevil". I did my research, and found that most reviews, on numerous sites and forums, for any BlueDevil product was a positive review.

BlueDevil fixed my leak in under 5 minutes. After using about 114oz of the other stop leaks combined, I was truly amazed at how 3oz of BlueDevil (1/3 of the 8oz bottle) stopped the leak. If you are curious as if it is worth the money, I will tell you that buying anything else is truly a waste. I still have 5oz of BlueDevil stop leak left, and with how well it is holding up (about a week so far), I don't think I will even need to add more. For the peace of mind, I will now forever turn to BlueDevil before Lucas or any other brand.

For those of you who take the logic of "It's a stop leak, so although it might stop the leak, it will plug up something else!" You are all fools and clearly do not understand how a stop leak works. I would never try a radiator stop leak, as those actually do plug everything. As for power steering, the only logical place you could have a fixable leak without having to replace major parts is at a seal. Power steering stop leak works by "expanding" the O-Rings between those seals. If my car was 20 years old, I wouldn't try a stop leak first, as it might simply destroy whatever is left of those O-Rings. In a system that is only a few years old, a stop leak will, and obviously for me, work! Also, if you're faced with having to replace a power steering system or spending $10 to see if this works, spend the $10, you may just save yourself thousands.

***1 Year Update*** (December to January )
Still working like a champ! I have put about 15k miles since the original writing of this review (December ). I have since used this to fix a leak on a friend's car roughly 8 months ago and his car has also not had any further leaks ( Dodge Durango, all factory pump rack and hoses).

For all of the negative reviews, I can only assume that you had a leak on a part of the PS system that was made of metal, such as the rack itself or the high pressure hose. Even the low pressure hose has metal parts. It's not possible to "seal" a leak on a metal part of the PS system, the pressure of the fluid in most of those parts is simply too high. This simply seals the places where all of the parts of the system connect. If you have a hole, this is not a patch and will not work.

If you really don't know where your leak is coming from and you have to decide between a bottle that costs <$15 and repairs that could cost upwards of $ you really can't go wrong giving this a try. I would be amazed to hear about how this fluid could harm a system that is dysfunctional and needs to be replaced to begin with.

My leak came from where the high pressure hose connects to the pump itself, and no amount of tightening or new O-rings seemed to solve the problem.
Good luck!

*****20 Month Update*****
I wrote the original review back in December . I am writing this in August .

Since using this product in my Grand Prix, I have put over 30,000 miles on the vehicle, and have not done anything to the power steering in 20 months. The fluid in the reservoir is starting to get slightly yellow, which is to be expected after 30,000 miles. I still have no leaks.

As for my friend with the Dodge Durango, he also has no leaks and has put about 8,000 miles onto his car since we put the stop leak in his car in May of .

I have since used this on a HONDA Accord. Yes I know, a Honda that takes "special" fluid. My friends car had a huge leak, and his dealer quoted him $ to replace the rack and pump. Knowing he would have to spend $ anyways, he knew that this stuff wouldn't make it worse on an already broken system. I put about 4oz of this in his car and within about 15 minutes, no leaks. He has been driving the car roughly two months now, and has had no problems using this in his car. He saved $, and I got dinner! Win-win lol.

It works. I don't know what else to say. If you're faced with spending hundreds, or thousands in my friends case, this stuff really can't hurt an already broken system.

*****40 Month Update*****
The Grand Prix I have still works exceptionally well. It now has about 190k miles on it, and Blue Devil has held up for almost 4 full years now. I have since put on a total of 70K miles since my original review back in December . I am writing this in April . I have since done a flush of the power steering system, and it did come out a very light brownish red color. All is still runninf well with this car though!

As for my friends Durango who I helped add this to, he sold it about 5 months ago, and he still had no problems with the power steering.

My friend with the Accord still owns his car. He changed the power steering fluid as well, and did not have any problems afterwards.

I am not in any way paid to do this, I just like to because I do a lot of research and what people say as first hand experience is what I find to be the best research for car additives and such. Good luck with your cars guys and gals!

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