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9 of 9 people found the following review helpful
on 21 April 2014
I have a 1998 Toyota Carolla which developed a slow coolant leak some time ago. I had identified that it was the water pump which was leaking, and needed replacing. Due to the car being a banger which was never expected to last more than a year (bought for £290), I was content so subsist with it by topping up the coolant occasionally rather than fork out on a garage repair bill which may have matched the cars' value.

The problem escalated however (as these things tend to do), and the coolant top-ups became more and more frequent. Soon I was having to put in a liter or two every day (luckily by this point it was spring season so I wasn't having to spend a fortune on anti-freeze!). The MOT was up in 2 months and I suspected it wouldn't make it through without work exceeding the value of the car, so I was determined just to stick it out until the end. This became impractical however when things got so bad that there was a trail of water under the car wherever it went, leaving the coolant system completely empty within minutes and limiting my range to only a few miles without stopping to re-fill it (luckily I work only a few miles from home so I was still able to make my daily commute with the critically wounded beast).

I finally gave in and decided I could drag the poor girl around in this state no longer, so took her to the garage for a quote to replace the water pump. As feared, I was quoted ~£250 (although I am told by some that this seems exorbitant). I thanked the mechanic for having a look, and informed him that it wasn't economical given the state and value of the car, and that I had resigned to take her in for scrap. He agreed with my judgment on the value of the repair, but in an act of compassion advised me to try K-Seal before I completely gave up on her. I explained to him that the leak was so bad that it was hemorrhaging 3 liters every few miles, and that I doubted it could do anything on such a massive gaping wound. He still urged me to try it, saying that in his experience as a mechanic, K-Seal was truly remarkable and he had seen it perform miracles.

So I decided to take the ~£10 gamble on the supposed "magical elixir of life", fully expecting it to fail on such an advanced injury, and kicking myself for having not thought to try it sooner and allowing it to progress so far.

And the results? Incredible!!! Within minutes of pouring it into the radiator, the steady stream of water pouring out the bottom of the car had slowed to a drip. Several minutes later, the drips had reduced in size and frequency to the point where they were barely visible. I filled her back up and took her for a short drive. Upon returning, there was still a slight drip coming from the water pump, but it was reduced so much that the car had lost only half a pint after a journey of several miles, whereas previously it would have leaked it's entire 3 liters. Although it wasn't 100% fixed, it was ecstatic with the results, as this would at least allow me to get another couple of months out of the car until the MOT was up.

I continued to drive it normally, checking underneath for any drips and topping up a small amount of coolant daily. Several weeks on, the leak has actually continued to improve, to the point where I am now putting in maybe 100ml of water every few days. Due the amount of coolant (and by extension, the magical elixir) which leaked out initially and in the subsequent days after use, there is little if any K-seal still remaining in the system now. If, by some miracle, the car makes it through the MOT which is due very soon, I am considering adding a 2cnd bottle to the system, to completely seal up the very slight leak that still remains.

The verdict? Well I'm sure you get the idea if you've read this far down.... this stuff is AMAZING!!! It was able to repair a water pump casing that was leaking so bad there was literally a trail of water behind the car, almost completely sealing it 100%, and I am pretty sure the only reason there is still a miniscule leak remaining is because the K-Seal had been discharged before it could completely finish the job.

Oh, and one final note -The heater still works ~100%. I had accepted that a likely casualty of this repair would be the heater, due to the K-Seal working upon contact with air, and the coolant system leaking so quickly that the K-Seal would end up sat in an empty heater matrix, likely plugging up the various small channels. I am further delighted to find that the heater still works seemingly as well as it ever did (although it's hard to tell as it's not nearly as cold nowadays, and it is not being relied upon as much). One possible reason, and this could be a bit of advice for anyone else using this product, is that I had the presence of mind to turn the heater off before adding the K-Seal, thereby isolating the heater matrix from the flow of the K-Seal particles, and didn't turn it on again until several days later when I imagined the K-Seal had become diluted to the point of being less of a threat.

And Finally, on the note of K-Seal sealing up heater/radiator channels when exposed to air - there was no way I could keep the radiator topped up 100% initially, as the coolant was leaking so fast. So surely parts of the radiator sat empty and vulnerable to plugging by the K-Seal magic particles. Well it's been several weeks and the coolant keeps at normal temperature, never over-heating as you might expect with a blocked up radiator. So one more reason not to be afraid to give this stuff a try.

As an addendum, I could see why someone with a fairly new, valuable car might hesitate to use this stuff. But as I described, my situation was the worst of the worst, and the radiator and heater don't seem to have suffered any noticeable damage from using it, despite having been exposed to air during the treatment. So I would definitely consider using it in a decent car, depending on the cost of a repair. And as far as an older car goes, that maybe only has a few months or years left in it, I wouldn't hesitate one minute - go get a bottle of the Magical Elixir, it will serve you well!
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19 of 20 people found the following review helpful
on 15 August 2010
good product tried 2 others But k-seal was the only one to work swift delivery too A1+
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7 of 7 people found the following review helpful
on 21 April 2013
Worked a treat , Deserves the 5 stars done just what it said it would. Amazing , saved me hundreds of pounds. would recommend it to anyone.
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2 of 2 people found the following review helpful
on 28 May 2015
Used on my 16 year old Freelander 2L diesel.
Was leaking 4 litres through the day , (1-2 litres after my 5 mile commute to work and after it had been standing for 12 hours , then the rest overnight).
Since I was only going to keep the car till the next mot which was 4 months away i was not going to spend money on getting the radiator replaced.
I tried some Radweld which stopped the leak for about a week , then tried the K-Seal and it has not leaked for over 3 months..
Only reason I would recommend this is if you are only doing short journeys though , in my case since I only use it for my commute to work I am only ever a maximum of 5 miles from home.
Probably would be ok for longer journeys but I would not risk it and would have spent £220 on a new rad with fitting if I was going to use it for longer journeys.
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2 of 2 people found the following review helpful
on 30 October 2014
Excellent stuff, had the dreaded white steam/smoke from exhaust and drastic loss of coolant symptoms. Garage done tests and finger pointed to cracked head gasket, with a £600 bill !! After a load of reading I chose the cheap alternative K-SEAL, as the car wasn't worth much more than the repair cost. Simply followed the instructions and after the short time scale instructed, coolant was no longer required to be topped up every trip, and no more smoke from the exhaust.... Problem solved (and saved nearly £590 in the process), now car will be with me for as long as symptoms return, still running strong as I write this....
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4 of 4 people found the following review helpful
on 6 August 2013
It cured a slight loss of coolant very quickly. So far, no sign of its return - very pleased !
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2 of 2 people found the following review helpful
on 20 February 2013
I was kicking myself after impulsively buying this product for my battered 14 year old Citroen Saxo that was using about 500ml of water on a 40 mile daily round trip; but in dispair I fell for the "snake oil" promise. The product was delived promptly. I followed the directions and have been monitoring aqua use over the past couple of weeks. It works!

I may build a shire in my garage for the faithful to flock too...
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28 of 33 people found the following review helpful
15th November 2012

Like Lazarus, I have just seen my Freelander in Bournemouth! I know that it is not solely due to the k-seal, but someone has repaired my faithful off roader by replacing the cylinder head gasket and making it serviceable again. Certainly in this instance, the k-seal did not render the repairs too difficult and by the way that the lady was driving it, she was obviously not concerned about its previous problems.

18th June 2012

After the longest running review of my life, I regret to inform you that after two years, the k-seal has finally let me down and on the A31 this weekend, it finally blew! Cloud of smoke and steam, loss of power and my Freelander ground to a halt. The AA towed me to a local garage whoare disposing of it for me for spare parts (£450 offer today).

Did K-seal let me down? Well yes eventually, but the K-series engine is infamous through Rover penny pinching with its'cheap Gasket, poor design and plastic bits holding the sump and cylinder head together. So what did K-seal achieve? Well almost 10,000 miles over 2 years under a light load. Was it worth it? Oh yes and definitely for a Freelander and my only regret is that someone did not put it in before the first microscopic leaks appeared. My car cost me £1000 off ebay and for two years stood me in good stead. Certainly were I tempted to purchase another Freelander from any source, the first thing that I would do is to put in the K-seal as a precautionary measure and this would apply to any other vehicle with a K series engine. If you are considering this product, take a look at my diary, if for no other reason that it might reassure you that it does work for some, if not all, but ultimately if you have a car which it would cost more to repair than it is worth, this product might offer you a reprieve from the inevitable and in my case, it offered me two years and that, for a 12 year old Freelander was quite some reprieve.

22nd May 2012

I know that this review must seem as it goes on forever BUT, Freelander went in today for it's MOT which it passed: obviously nothing to do with k-seal, but it has got a clean bill of health again and onwards into another year of motoring. I hope that by placing a regular update that some of you will see that for SOME of us, this product works. The longest journey remains a 25 mile return trip each Saturday, but the car is used daily and touch wood, the coolant level remains unchanged from my March update.

24th April 2012 Update

On Saturday I gave my Freelander a small service -just oil change and a check of the fluid levels. No surprise that I have not lost any coolant and the oil came out of the sump without a trace of coolant in it, suggesting that there has been no transfer of oil into the coolant or vice versa. I now look forward to my Freelander going for its MOT and providing that it passes, the potential for another year of motoring thanks to k-seal. I continue to appreciate the reviews of those who this product has not achieved a repair for, but for me and my relative low usage Freelander, it has kept us on the road for a further four months and two years in total and shows no sign of letting me down. I have no intention of taking it on a long trip to try it out though and a 25 mile trip each Saturday is the longest that I am ever likely to undertake in one go, but I can now advise that K-seal has seen me through a further 470 miles since my March update and almost 9,000 miles since I poured in the first bottle two years ago. The third bottle still sits in my glove compartment just in case though and every time I lift the bonnet I dread the thought of the expansion tank being empty and having to pour it in, but so far, every time I look not a drop has gone.

11th March 2012 update

Still going strong! I went into my local LandRover garage last week for a new set of HT leads and a King cable and whilst I was there, I spoke to the guy that runs it. We discussed k-seal. He had a problem with his Mark 1 rangerover when in France: a leak from the heater matrix. WHat did he reach for? K-seal - got him around France and back so that he could fix it properly: his only adverse comment was that it had really made a mess of his thermostat, which he replaced easily (nothing compared to replacing or repairing the heating matrix). It worked for him on that occasion and for almost two years has worked for me. Since I added the last lot of k-seal I have covered a further 1500 miles, all short journeys admittedly, but my Freelander keeps going and whilst I appreciate what others say about it will not fix a head gasket, the car on my drive is living proof. I can only reiterate once again, if you have a low value car with nothing to lose other than loads of money to repair it, which is worth more than the value of the car, throw the k-seal in and give it a try - it might not work for you, as it obviously hasn't for some, but for me, it is the dogs!

My Review

I first purchased this item when I noticed that the coolant on my 1.8 litre petrol freelander was dropping very quickly. Having purchased the vehicle for £1000 from ebay and familiar with the history of the K series engine, this came as no surprise. The cylinder head gasket had obviously gone as there was emulsion in the oil. What were the options? Cylinder head gasket repair and possible replace the warped head or k-seal. For the money what could I lose? I note that some people had critiscised the product for leaving sludge in the coolant, but let's be honest, it is a sub 10 quid product as opposed to a £1000+ garage repair.

Straight off I poured it in the coolant tank, topped up with coolant, ran the engine and it seemed to have stopped the leak. Sadly the same thing happened and so K-seal had failed, but please read on......I cover 80 miles a week in this freelander, always short journeys to take my dogs for their daily walk. But more importantly, I feel that you should be aware of, is that this repair lasted for 18 months and 6,000 miles before the leak came back!

Faced with the same situation, what could I do. I sent off to Amazon for another bottle of K-seal, which with express delivery cost me £15.00: it arrived the next day, 23rd December in the Christmas rush, poured it in and now on the 17th February I can report that I have not lost any coolant and almost 900 miles further on, my freelander is still running fine. I check the coolant each week just in case, but it is fine.

Would I use this product on a newish car? Probably not, but my freelander is w reg, is notorious for this type of problem and what did I have to lose? K-seal has now given me an additional 7,000 miles of motoring, it has covered the inside of my expansion tank with beige sludge, but this is an old car and I would suspect most of the people who use this product aren't tipping it into the radiator of a Merc or BMW just out of warranty.

You get what you pay for and if like me you have an old car and the repair just isn't worth the trouble, the expense or if you are mechanically proficient to the degree of repairing it yourself, the time. Great product and I am so confident that it will keep me going I have just ordered another bottle, just in case it fails again. Even if it only saw me through another 500 miles, it might see me through to the next MOT!
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12 of 14 people found the following review helpful
on 11 August 2014
Had a mystery coolant leak on my 206 and needed to get my car to last three more weeks, put it in as instructed and although all seemed fine at first, later on my engine management light came on.

Took it to my mechanic and I'm told its bascially clogged everything up and that you can see it all when you take off the header tank. He said there was about 8 codes coming off the computer - so basically my only option now is replacing the cooling system or scrap it.

Obviously it has worked for some people, but I would only put it in your car as a very last resort. Not as a money saving option!
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7 of 8 people found the following review helpful
on 15 November 2014
Bought a bottle about a year ago, not expecting much but trying to avoid a very expensive repair. My eight year old car was losing about a litre of coolant a week from the head gasket. Since I used K-Seal the coolant has NEVER needed to be topped up! Cannot fault it's ease of use and long term effectiveness.
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