BlueDevil Products00209 Pour-N-Go Head Gasket Sealer - 16 Ounce

2005 toyota 4runner. First it was the water pump leaking so much . I had to put water in it everytime I used it. Changed that. But still losing water just not as bad. Steam coming out of exhaust. Not water in the oil. Bought blue devil. Followed instructions.Haven't put water in it and that's been over a month. So I'm a believer and keeping my fingers crossed 🤞.

Purchased on 3-4-25, today 4-30-25 & still working!Worked as advertise!I let it set overnight to harden.

The media could not be loaded. 2005 Honda Element LX AutomaticUPDATE: Prestone flush chemical did NOT react to Blue Devil crystals. It must've been bubbling from the heat gasket leak. I had to remove the radiator and flush it thoroughly to remove even more large crystal chunks. I hate that I used this product and hope that it doesn't end up clogging up my system in the future. In total, I did 1 garden hose flush of the entire system, 3 prestone flushes, a radiator garden hose flush (radiator out), and 4 distilled water flushes. AVOID THIS PRODUCT!Deceptively labeled as a "pour and go" product. If your cooling system has gotten any combustion gases in it or is "dirty" you will need to flush it, otherwise you'll just get a clogged system. I contacted Blue Devil support, where they were less than helpful. They merely put the blame on me, saying they had no idea why it would crystallize like that, or it might've already been like that. Yeah... I don't think so. I followed the instructions very carefully and poured even slower than instructed.I drained some of the existing coolant, enough to make room for the Blue Devil contents, then started the cold engine and poured a very small stream until the bottle was empty. I then let it idle for 50 minutes. 40 minutes into the idling, the air coming out of the heater vents began to get colder and the coolant gauge showed the engine temperature climbing. It appears this is when the clogging began to occur.I had to take all the hoses off and flush very well with a garden hose through everything I could. Still plenty in the system, so I did 2 Prestone chemical flushes of the system. At least the Prestone chemical flush seems to react with those Blue Devil crystal chunks and break them down. I left the flush (with distilled water) in the system for several days, driving it daily (just make sure temps aren't going to go below freezing). I'll flush 3 more times with distilled water to get all the Blue Devil glass powder out of the system, then fill with antifreeze and try K-Seal next, since it doesn't use liquid glass to seal.

02 volvo 238k inline 6 cylinder non turbo. Owned vehicle for 10 plus years. Heater core started leaking, 500 bucks plus for new one so I continued to drive adding water when necessary. Gave up putting anti freeze in it as to expensive and only leaks out. It Got so bad interior was starting to flood, like a lot! It was actually sloshing around. Finally, I bypassed heater core and continued to drive. Then the head gasket blew! Hot Water/coolant was pushing backing up through clear plastic reservoir. Like real bad. It was steaming and boiling over like a volcano. Yep, I continued to drive adding water and using it for very short 3 block trips before it overheated. Went to get head gasket repaired. Got quotes 2500 to 3000! I thought the car was trashed. Wife said take to junk yard. Cut our losses. I saw an ad on amazon and laughingly bought 1 bottle of blur devil pour and go. I followed the directions. Remember I already bypassed the heater core so it wasn;t hooked up. I just ran the 2 hoses together to bypass it. I added it to the top radiator hose and put the hose back on. I ran the car as directed. White smoke pouring out of the tail pipe, puffing, chugging, running on only a few cylinders. I was Completely embarrassed as the neighbors looked on from down the street. It said to run 55 minutes at idle but after about 40 minutes I felt sorry and said this is enough I have to put the car out of its misery and shut it off. I slammed the hood and went inside. Next day about 20 hours later I start the car to move it in the drive. I watched the temp gauge, then I hear a thunk. I watch and it isn't over heating. So I take it for a spin around the block. Its Running good. WTH? Omg did that blue devil stuff work. Cmon no way. DId it really work? What the heck is going on-wht isn't the car overheating? Is the gauge stuck as I hit the dash to check. I am in complete shock! My Jaw is dropping I run into the house. I am speach-less! Honey, Honey, the volvo is back!! Yea right she says No I'm serious! Go for a ride with me-If we break down ill never speak to you again, she says. We went out cruising all over. Car ran perfect. No overheating. No smoke from tail pipe. No chugging, no fumes, etc. I am in STILL IN AWE OF THIS PRODUCT. My issue was very serious and 1 bottle and it worked. I am not getting paid for this and I do not lie. I have no reason to. And I do not wish to deceive my fellow man. All I know is THIS STUFF WORKED IN MY VOLVO, and trust me it was in sad shape. THANK YOU BLUE DEVIL AND TO THE GUY WHO INVENTED IT AND ALL YOUR EMPLOYEES AND AMAZON.