K-Seal Ultimate

My coolant was on the floor a garage I parked on, after checking. Got this fast the next day. put in engine and coolant is no longer disappearing. A job of a few minutes driving & checked next day that it still worked.

Worth a try,It do not work for me unfortunately

Follow the instructions! Great product, really made a difference.

Absolute Rubbish . As fast as I poured it in , it came out ? If I obtain a refund it will go to Charity.

Works really well. Just make sure you really warm the engine fully. Great item. Fast delivery. Well packaged. Highly recommended 100% good

Not sure how many stars to give this?? I have a BMW X5 4.8is V8 Petrol. I am losing water - but only a tiny bit poss 0.25L each week. Slight steam from exhaust when idling but again not much & hard to tell if coolant. No water in oil & no oil in water... I can only imagine it must be a tiny head gasket problem. Mechanic says no leaks. Car still drives like a dream. I have dosed the engine with one of these and given other positive reviews you would think that it would have done the trick? Maybe with the engine size I need 2 lots - however do not want to waste another £24 if it does not do the trick - really stuck - any wisdom on here? also noticed product says money back if it does not work - I wonder how to invoke that if I buy another and no joy? M

My trusty 1996 Diesel car of 17 years had to be sold due to the stupid and criminal extension of ULEZ (extended outside of the A406, by the London Mayor). Unfortunately the replacement vehicle I bought (it wasn't obvious at first) had a suspect blown head gasket , I thought the slight oil in the coolant was due to lack of maintenance/servicing by the previous owner & the broken seals on the oil cooler - there were no other head failure gasket symptoms . Also a co2 head tester test showed negative to head gasket issues. 6 months after the purchase, the oil management light came on. Diagnostics showed cylinder 2 misfiring. I replaced all the spark plus & ignition coils, the light disappeared for a day , but came back again. My local garage took out the spark plug to cylinder 2 & used some sort of Otoscope to peer into the cylinder and saw coolant in there. He recommended K-seal. I read reviews and results seem to be 50/50, (I presume it depends on the seriousness of the gasket damage, how successful this treatment will be) . But for my Nissan Xtrail 2.5 litre Petrol engine this worked a treat. No vibrating when i started the car, the car ran smoothly. Whether K-Seal would last for a long time, I cant say, I had a road trip planned and wasnt going to risk it, but definitely as a stop gap till i got another car, this worked brilliantly. Its a gamble, but even for the price (£32) I would definitely sue this product again as a stop gab or to get me out of a tricky situation ie getting home rather than being stranded. As for the long term issues with having this in your engine, some say its ok, some say its not great for the cooler system, but for an older car my feeling would be 'why not use it, especially as a stop gab.

Stopped the coolant Leaking from Engine on a Landrover freelander 2005 Petrol with confirmed headgasket leak feel free to read on, I had headgasket failure symptoms on my car it's done over 115,000 miles and already had 2 headgasket replacements in it's life the last at 96,000 no way was I spending anymore big money on that thing I used a sniff test (separate purchase) and the fluid went yellow and a strange thing was the coolant was leaking slightly from mid Engine at the front it could even have a craked block or warping it's unusual to leak externally, I ran K seal and after seconds the leak has stopped and not losing anymore coolant. Luckily it's only needed for very short journey to work so I'll live with it like this until it dies i for sure wouldn't use it if I had a nicer car I'd get it fixed or if I was far from home I'd definitely use it to get back just read instructions carefully and there isn't really any risk of any blockages which had me worried. I'd say use if the car is beyond economical repair this has gave me time to save up

Ho prima messo a livello l'acqua nella vaschetta a motore freddo, ho tolto la quantità d'aqua dalla vaschetta pari al prodotto, ho versato il prodotto nella vaschetta , ho avviato il motore METTENTO LA STUFA A CIRLCOLO ARIA CALDA , ho fatto riscaldare da fermo il motore fino a 80 gradi poi ho circolato per 3/4 km . ho spento e fatto raffreddare 5/6 ore. dopo di che ho usato la vettura regolarmente. IL PRODOTTO HA FUNZIONATO. La vettura è una Fiat stilo SW 140cv Multijet con 450.000 aveva soffiatura alla testata che mi consumava circa 150ml di acqua ogni 100 km (un bel bichiere di acqua) cacciando fumo bianco dalla marmitta. Ora dope Tre giorni ho percorso circa 560 km NON CACCIA FUMO BIANCO NE CONSUMA PIU ACQUA: al momento va benissimo non so quanto duri . comunque ho rimandato la rottamazione!!!

My 98 Corolla keeps losing coolant, found K seal on Amazon and searched for reviews for couple days and bought it and poured it in. Running a day or two coolant stopped leaking. Happy results and the little Corolla will be on the road at 2 to 3 years at least.

Subaru Outback 2.5 l anée 2000, 210.000 km. Elle perdé l’anticongelant par la joint de culasse en grande cantité (odeur, fumée dessous le capot). J’utilisé K-Seal Ultimate et le problème a été corrigé. 3 semaines plus tard il n’y a le moindre symptôme du problème.

Good product work on my car now .now to gas prblm everthing stop

La verdad que ha funcionado tenía un poro, le echamos el líquido hicimos 25 km como nos recomendaron y de verdad que lo notamos el coche tiraba mucho mejor, fácil de poner.