BlueDevil Power Steering Fluid + Stop Leak – 8 oz | Restores Seals & Prevents Leaks | Smooth Steering Performance

**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 2014: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 2006 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 10008 Power Steering Stop Leak 12 oz.: I love Lucas products, as their products have normally worked before, especially the Lucas Heavy Duty Oil Stabilizer (10001). 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 1600 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 2014 to January 2016)Still working like a champ! I have put about 15k miles since the original writing of this review (December 2014). 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 (1999 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 $1000 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 2014. I am writing this in August 2016.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 1999 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 2015.I have since used this on a 2002 HONDA Accord. Yes I know, a Honda that takes "special" fluid. My friends car had a huge leak, and his dealer quoted him $1400 to replace the rack and pump. Knowing he would have to spend $1400 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 $1400, 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 2014. I am writing this in April 2018. 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!

This fluid works very well. It's a quick fix for how long remains to be seen. Good value for the money. Quiet now

This product was recommended by my mechanic who had quoted me $1,000 of labor to install a rack-and-pinion on my 2001 Acura TL (I provide him the part). He stressed that I should follow the instructions on the bottle to a tee. My rack-and-pinion was draining the entire power-steering reservoir in one hour of driving so I expected to need several application of BlueDevil stop leak to fix my problem. It actually stopped leaking with the very first application. I am highly impressed with this product.

1997 BMW Z3 with power steering fluid leak. Usually do not believe in trying "snake oil" but this seemed to have a good reputation and thought, "Just Might". Well it did work. Been in car for over 6 months and reservoir has not lost enough that I have to add. Took out a measured amount and then replaced with this stuff to the same amount. Works as described which is not all that common anymore.

My Honda Integra power steering rack and pump were leaking but didn't have the funds to replace both. I found this bottle recommended on a few forums and decided to give it a go. It does work after adding basically the whole bottle if the leaks are bad but it is a double edged sword. This fluid causes the seals to swell up to hopefully seal the leak but at the over time some seals can over swell and damage themselves more, causing a bigger leak. So in reality this is a temporary fix at best, not a permanent one. Before the seals burst in my pump it lasted with no leaks for a few months, hopefully that's long enough for people to save up enough for a proper repair.

Over the course of 40 years of caring for my own, friends' and family's cars, BlueDevil Power Steering Stop Leak is the first I can remember that truly and completely lived up to its name and promises.I simply followed the bottle directions and added about 3 ounces of the product to the PS reservoir that was already low after a continual slow lear (about 1 oz. per day). After a couple of hours of driving over 2 days, the level in the reservoir stopped dropping. Since I filled it slightly over the Max Cold level, it conveniently lost about 1 oz. and stopped just at that Max Cold mark.This problem began late last winter after a long trip to Vermont and back in a 2009 Subaru Impreza. The PS pump was making quite a bit of noise, and I noticed that the fluid level in the reservoir was well below the Min Cold level, but not yet empty (which would have quickly destroyed the PS pump). After refilling the reservoir, I began to look for leaks and spotted one at the rear of the PS pump. It was leaking very slowly out of the high pressure switch. I kept refilling the reservoir every week when it hit the min cold mark. Eventually, when the weather warmed up, I replaced the PS pump.But the leak persisted, and it wasn't from the usual places, the ends of the power steering hoses. Turns out the leak was from the seal on the driver's side of the steering rack. Repair meant replacing the steering rack, a $1k+ job at most places. I did some online research and found this BlueDevil Power Steering Stop Leak. The manufacturer's website said it would work if the seals had simply become hardened with age. If they were physically damaged, it wouldn't help. I found such honesty refreshing.Reading comments on this AZ webpage convinced me that a $12 payout was well worth the risk. All other stop leaks (radiator, oil gaskets, a/c) work by trying to clog up the source of the leak. And you usually end up with a clogged radiator/oil passages/A/C system. This works by softening the neoprene seals, allowing them to again seal tightly against the shafts.It did, and no more leaks.The only suggestion I could make about the product is to have a fluid level indicator on the side of the bottle, similar to what most motor oil bottles use. Then the user won't have to guess how much is 1/3 of a bottle.