STEEL SEALBlown Head Gasket Fix Repair Sealer - 8 Cylinder

I recently purchased a 2005 Lincoln LS with the 3.9L jaguar v8 as a project car. After buying it I discovered it had a minor head gasket leak, only exhibited by combustion gas in the coolant Degas tank, and confirmed with combustion gas tester and had a little bit of the white sludge on the engine oil fill cap. The instructions on this and the tutorials were all over the map, so I called steel seal directly. The tech was super helpful. Essentially, I did the following: 1) drained the coolant, remove the thermostat (not necessary but I wanted to make sure this stuff was getting to the leak for certain and the tech said it was a good idea) 2) added distilled water to the system while adding both bottles of steel seal in the middle of filling; 3) follow your cars coolant fill and bleed process; 4) start your car,turn the heat on full blast, and rig up a system to hold you gas peddle to keep rpms at 1500 to 2000, run the engine for at least 20 minutes. You can also drive the car per the instructions, but I preferred the safety of my cmgarage in case something happened in the process. After 20 minutes turn the car off and do not touch anything. Let the car cool completely down, like 24 hours cool down. The steel seal tech stressed this hard to me, it has to cure. I actually repeated the procedure the next day after it cooled, just in case, probably didn't buy me anything. After you finish with the procedure get that stuff out of you engine. I actually flushed my cooling system about 10 times, I'm a bit paranoid, but wanted to get it out of there. Fill up with your manufacturers recommended coolant. This stuff was developed in the UK, which uses porpylene glycol in some of their engines. Some here in the states too. It is not compatible with propylene glycol, but ethylene glycol is ok.I'm about 500 miles in, and it's holding fine. I think my leak was very minor, so your mileage may vary. I'm not into the "snake oil" stuff usually, but this actually did solve my problem and has kept it from getting worse, at least for now.At some point I'm fully aware I may have to do the head gaskets, but this is a pretty cheap and easy hail Mary that might save you some money, and trouble too. I'd recommend this product over other "head gasket repairs in a bottle" for two reasons, 1) it does not have fibers or fillers to further clog and damage stuff in your cooling system, and 2) it seems to be one of the most successful in solving head gasket issues, albeit more expensive than most other brands.Also, I had replaced the water pump prior to doing this and the water pump failed shortly afterwards. I can't say for certain this product caused that. The water pump was the one part that wasn't Ford part when I went through the cooling system before doing this procedure.

I did everything as it said to do and flushed my system and used nothing but water and 2 bottles of Steel Seal. Drove my SUV as the instructions stated and then parked it letting the motor completely cool down overnight. Then dain the system and refill it with cooling mixture. while steel seal was being ran through my motor it smoked like crazy out my tailpipe. After draining Steel Seal from system and refiilling with coolant and water it now smokes when I crank it and every time I get on the gas . This was a complete waste of my money and did not work at all like money back guaranteed it would

Toyota 4.7L V8 225k miles. Was bubbling (not bad but definitely bubbling 1 good sized bubble every 2 or 3 seconds) w radiator cap off. Building pressure in cooling system, actually blew COLD antifreeze all over me one morning after sitting all night, and the next morning, I popped the radiator cap, and the whole system was pressurized and sprayed me, the engine compartment, and half of my garage with COLD antifreeze. While driving actually blew off top radiator hose off while the wife was driving it (that was the last straw, as you can imagine) as it left her stranded on the side of the interstate (with an almost dead phone battery, you can imagine how THAT conversation went). Heater wouldn't work, or would work intermittently and coolish/warm air at best. Definitely a head gasket issue. Tried everything because was in denial about head gasket leak. New heater core, flushed, flushed, flushed, reverse flushed, acid flushed, did I say FLUSHED the cooling system. Finally decided to "bite the bullet" and make the decision to face the music of it being a head gasket issue. Called a few buddies and inquired about replacing the head gaskets. Quotes came in anywhere from $1500 to $3000. Much more than I wanted to spend. Saw some good YT videos on this stuff, and figured, with everything else I tried, may as well take one more "hail mary" before I bite the bullet and spend the big money to fix it "right." So,I bypassed the heater core, because it was brand new and didn't want to take the chance of this stuff clogging it, and I took out the thermostat, drained the entire system and filled it with fresh water, and put in 2 bottles of this stuff. Ran it at idle in the garage for about an hour, the temp never did get above the middle of the gauge (its winter and outside temp was low 40s). Didn't want to risk anything (with everything I had been through) by driving it, so I just idled it. After I figured it was as hot as it was going to get,I decided to shut it off, let it cool down a bit, and put the thermostat back in and take it for a drive. So,I let it cool for about an hour, and then put the thermostat back in, filled it back to the brim w water, and drove around town, up and down hills, and stop and go traffic and everything looked good, no weird temperature fluctuations, needle stayed right in the middle of the gauge. Came home, let it cool over night, drained the water, refilled it w water, and hooked the heater back up, and drove for about an hour in stop and go and up and down hills and again, the temp gauge was perfectly stable and the heater worked great. Let it cool down again, drained all the water, and filled it to the brim w antifreeze, and the wife has been driving the kids around in her SUV like nothing ever happened ever since, and has been about a month and a half now and about 1500 miles, and there hasn't been any fluid loss in the reservoir, when I pop the radiator cap the antifreeze is right to the brim and absolutely no bubbles when its running, and I would have to say, in my case, IT WORKED. Only question now of course, is for how long? But, for now the bandaid is holding, it got me out of a pinch, got the wife and the kids heat again, and I'm pleased with the results.