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🛠️ Fix it once, drive worry-free forever!
The Award Winning Steel Seal is a cutting-edge engine cooling system additive designed to permanently repair side leaks in cylinder head gaskets and engine blocks. Compatible with all water-cooled engines, it uses a unique thermochemical bonding process to deliver durable, no-disassembly repairs while protecting your cooling system from blockages. Trusted by thousands, it offers a quick, reliable solution to extend engine life and avoid costly repairs.











| ASIN | B004BU44H0 |
| Best Sellers Rank | 12,651 in Automotive ( See Top 100 in Automotive ) 150 in Fillers, Adhesives & Sealants |
| Brand | Steel Seal |
| Customer Reviews | 4.2 4.2 out of 5 stars (526) |
| Item Shape | Round |
| Manufacturer | STEELSEAL |
| Manufacturer Part Number | SSAT |
| Material | Alloy Steel |
| Model Number | 5052665000005 |
W**E
Works
This stuff does work, how long for I don't know time will tell. Bought for my partners car as she was losing water somewhere, I put this in following the ideal procedure water out, engine flush, and adding back into the system, allowing to circulate round the engine. She's not lost any coolant upto now and its been over a week. Was very sceptical being a 40 quid bottle over what could be an expensive repair job but upto now it seems to have done what it needs to.
A**S
Almost worked
I wasn't sure if this would work as I was losing about 170ml of coolant a day and had water in the oil. I used this product as directed, took it for a few miles drive, let the engine cool and topped up with water to the fill line. I checked the coolant level after a few days and it was ever so slightly below the fill line. I can still smell exhaust fumes inside the cabin when idling which suggests that exhaust gases are seeping into the heater matrix so it hasn't fixed it fully but I think it may have bought me a little time. I'm scrapping the car soon anyway I just need it to survive another few months until I can afford another car.
K**.
Follow the instructions
100% saved the day thanks
A**N
Highly recommend
This stuff worked for about 6-7 months when I contacted the seller (steal seal) they where more than happy to stick to there policy of lifetime guarantee and after I sent in proof of purchase and a claims form they sent out a new bottle. I will recommend this product to anyone in a sticky situation and needs a quick fix for there head gasket. My
D**Y
Didn't work
I had a leaky head gasket and was hopeful Steelseal might fix it. I followed the instructions fully and even tried the additional instructions for when you have coolant baj pressure. Nothing worked even a little. Total waste of time and money.
C**N
Coolant leak
It didn't work on my car for the job needed.
L**R
It works
I looked specifically for this item as I’ve come across this before & found it the best remedy
M**D
it seemed to work on my Jag v6 diesel
it seemed to work on my Jag v6 diesel Would be five stars if it wasn't so aggressively priced. I did some research and there would be no problem for them to make the chemical more concentrated and not required two bottles. £80 As it is the chemical that is not at maximum saturation point otherwise they wouldn't be able to dye it yellow. The money back guarantee has more get out clauses than budget car insurance 🤑 Nonetheless the crux of it is the product seemed to work
J**N
Underbar produkt som verkligen funkar
T**I
Hab es beim Audi Cabriolet 2,6 von 1994 angewendet, da die rechte Kopfdichtung einen Schaden hatte (Kühlmittel gelang in den Brennraum von Zylinder 3). Es hat einwandfrei funktioniert. Hab 4 Monate danach erst die Kopfdichtungen erneuert. Bis dahin lief der Motor wunderbar ohne weiteren Kühlmittelverbrauch.
M**T
perfect , fixed small leak in head gasket
W**R
It didn't work as expected. just wondering how to apply for refund
M**E
Non ha funzionato su una Punto 188 1.2 8v del 2000: la temperatura dell'acqua sale ed entrano gas combusti nel circuito del refrigerante, perche' la guarnizione di testa e' rotta. Pur avendo drenato il vecchio refrigerante e usato solo acqua e SteelSeal e pur togliendo il termostato per far circolare subito il liquido, non ho ottenuto la sigillatura. Peccato perche' chiedono 450 euro per firare la guarnizione di testa.
Trustpilot
3 weeks ago
5 days ago