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Blue Devil Head Gasket Sealant
Blue Devil Head Gasket Sealant will repair and seal leaks in blown head gaskets, warped or cracked heads, heater cores, and freeze plugs. Blue Devil contains no solid or particulate matter, and will not clog or harm your engine. It bonds to metal, aluminum, cast, alloy, or plastic, and its safe and easy to use. Blue Devil is compatible in gasoline and diesel engines.
Product Features:
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Product Features:
- Permanent repair for Head Gaskets, Warped or Cracked Heads, Heater Cores , and Freeze Plugs
- Contains no solid or particulate matter that can harm engines
- Alternative solution for costly, or time consuming repairs
- Safe and easy to use
| Antifreeze Compatible: | Yes |
| Container Size: | 32 OZ |
| Container Type: | PLASTIC BOTTLE |
| Count: | 1 |
| Dosage: | 1 BOTTLE TREATS A 4.5 GALLON SYSTEM |
| Heater Core Leaks: | Yes |
| Lubricates Water Pump Seals: | No |
| Permanent Repair: | Yes |
| Type: | SODIUM SILICATE |
REVIEW SNAPSHOT®
by PowerReviewsBlue DevilHead Gasket Sealant
(based on 49 reviews)
Ratings Distribution
71%
of respondents would recommend this to a friend.
Pros
- Easy to use (26)
- Reliable (14)
- Can withstand use (8)
Cons
Best Uses
- Home garage (31)
- Automotive repair shop (12)
- Roadside repairs (3)
- Upkeep (3)
- Reviewer Profile:
- Casual driver (8), Auto enthusiast (6), Mechanic (5)
- Reviewer Profile:
- Auto enthusiast (10), Mechanic (8), Casual driver (7)
Most Liked Positive Review
Solved Overheating Problem
Fixed cracked head causing overheating problems. Internal leak was losing a few ounces of coolant each day and introducing gases into coolant that required continual bleeding of system or overheating resulted. Once gasses bled ...Read complete review
Fixed cracked head causing overheating problems. Internal leak was losing a few ounces of coolant each day and introducing gases into coolant that required continual bleeding of system or overheating resulted. Once gasses bled after car started and warmed up, car would not overheat. White smoke on warm up that would go away after leaked coolant boiled off. Crack would allow coolant in cylinder when cool and open, but would expand into itself when hot and close. BlueDevil Company recommended removal of spark plug in damaged cylinder (required compression diagnostic to determine which and gas test for the coolant) to improve chances of repair--common advice seen online with mechanics, too. Carefully followed instructions on bottle, otherwise. Cylinder carbon purged when compression improved. Thick black smoke from tailpipe eventually went away after some driving. Seal has held for a week of driving. While I would recommend a proper headgasket and head replacement for a newer car, this has worked so far to repair an old car not worth the amount of the repair job, which would have been around $1100 for the head gasket replacement and a few hundred more for the head itself. Our goal is to give us time to save money for another car. We have read online from non-company sources that the seal can last anywhere from 3 months to 3-1/2 years, and that a reapplication usually is successful. There is enough product in the 32 ounce bottle for two treatments of a 4 cyl engine. If you have a screw bleeder valve at the thermostat housing, and it has a small leak, that will seal too, so make sure it is tight and closed or put something slippery in the threads to prevent the sodium silicate from crystalizing and adhering there and locking it up.
VS
Most Liked Negative Review
Causes more problems than it solvesevil
Do not put this [*] matter in your cooling system unless your car is going to quit forever very soon. In April 2011 I had a number 4 cyclinder misfire problem and used my...Read complete review
Do not put this [*] matter in your cooling system unless your car is going to quit forever very soon. In April 2011 I had a number 4 cyclinder misfire problem and used my portable digital scan reader to diagnose the problem. I proceeded to buy and use the Blue Devil Head Gasket Sealant for the problem. I followed the directions on the bottle to the letter. One of the directions was to close off the interior heater before starting the car, driving the car, and then allowing car to cool off completely before reopening the heater core, which i did. It was April and the weather turned warm and stayed that way until October. Then was when I discovered that my interior heater would not work. I went back and forth to my mechanic. I replaced the radiator and water pump. Also had several flushes and back flushes done. Finally the mechanic scrubed the cooling system hoses and block. Whiteish gray pebbles came out of this scrub job according to him. Now the heater works OK after spending almost 1K on fixing this problem. In late January 2012 I e-mail the USA Sealant Company explaining the problem, expense, and to be reimbursed. We e-mailed back and forth and talked on the phone once. The final conclusion was that they will not pay any of my expenses. I did get a refund for the bottle at the auto parts store. The clerk there did say that this product would restrict and potentially block portions of your cooling system. Buyer beware this junk.
REVIEWS
Reviewed by 49 customers
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Displaying reviews 1-10
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Comments about Blue Devil Head Gasket Sealant:
I have a 97 expedtion with a 5.4 lit.engine. My truck was missing ,check engine light was on and i got tired of adding coolant.It would have cost me a fortune to change the head gasket.My machanic told me to try Blue Devil Head Gasket sealant.I followed the instructions on the bottle and it works darn good.The engine light out and the truck is running great.
Pros
Cons
Best Uses
- Automotive Repair Shop
- Home Garage
Comments about Blue Devil Head Gasket Sealant:
I followed all instructions to a 'T' which took several hours when you include running, flushing and draining time. The good news is the vehicle was no longer losing coolant after using this product.
Pros
- Easy To Use
Cons
Best Uses
- Home Garage
Comments about Blue Devil Head Gasket Sealant:
We used the Blue Devil Gasket Sealer as we were instructed by the Sales Associate. We have a small leak in a gasket and after use of the product, so far, we have no more leakage. Amazing! I hope it lasts a long time!
Pros
- Can Withstand Use
- Easy To Use
- Reliable
Cons
Best Uses
- Automotive Repair Shop
- Home Garage
Comments about Blue Devil Head Gasket Sealant:
My '96 I30 had a head gasket that was going bad. It would blow coolant out the top of the radiator when the cap was soft or overflow the reservoir when the radiator cap was on. I can across this product while searching the internet for comparisons on whether to get the head gasket or just a rebuilt engine. For the price, I decided to just give it a try and if it didn't work, oh well...... I bought this product and made sure I followed the manufacture instructions perfectly. I only used a half bottle and the car has been running great for 6 months now. This product works really great. You much give this a try before you spend the money for that head job. Just make sure you follow the instructions and do your research. There are videos of people using this product on youtube as well.
Pros
Cons
Best Uses
Comments about Blue Devil Head Gasket Sealant:
Followed directions to a T. This was a small breach in the headgasket but this stuff did absolutely nothing but add 3 hours labor to the headgasket replacement.
Pros
- Not Reliable
Cons
- Difficult To Use
Best Uses
- Home Garage
Comments about Blue Devil Head Gasket Sealant:
I used the Blue Devil Head Gasket Sealant on my 1996 Chevy Suburban, it currently has 96,000 miles
it has a brand new radiator and hoses. I had an intake manifold leak. This product was highly
recomended and even thou it was expensive I used
it. I called the manufacture several time to make
sure I understood the instructions. I use the product as directed and the product work great for
about a month,now my intake manifold is leaking again. When I tried contacting the manufacture and filled a claim form. Enclosing my reciet and bar code. That was over 3 weeks ago no one has contacted me back.
Pros
Cons
Best Uses
Comments about Blue Devil Head Gasket Sealant:
The directions were followed to a T. Simply put does not work. Tried to fix my 200 fexplorer. After a day wasted now to the shop.
Pros
- Easy To Use
Cons
Best Uses
Comments about Blue Devil Head Gasket Sealant:
Basically when it heats up it over pressurizes the cooling system and becomes an adhesive so after you shut off the motor it spits this adhesive into all of the leaks and seals them as it cools. In my case it started leaking from places that didn't leak before - hopefully it lasts long enough that it didn't just create new leaks in the system. Car still has leaking gasket issues though and still overheating.
Pros
Cons
Best Uses
Comments about Blue Devil Head Gasket Sealant:
I have a 2003 Subaru Forester, which consumer reports rated as a very reliable year when I initially bought the car used. It now has 133,000 miles on it and developed a small head gasket leak. We tried Blue Devil Head Gaasket Sealant for a temporary fix until we had time to take our car to the dealer which is 200 miles away - one way. My husband followed the directions to the letter (he is a bit of a nerd), using the Blue Devil the morning I was going to take a friend down to the big city for a shopping trip, the big city being 200 miles away. We live in a small southern Utah rural community. I got about 25 miles from home and noticed the car was engine was getting kind of hot. I shut off the A/C and continued on for another 5 miles to a place were I could use my cell phone. By the time we got to cell coverage my car engine heat indicator was on the red line. Called my husband, he came and recued us and it took him 3 hours to get home because he kept having to shut down the car to keep from overheating.
Anyway, three thermostats (the first two were covered in blue slime), a new radiator, a cooling system flush and we are still having problems. We took the car to the dealer to have a Subaru thermostat put in, the system flushed again and Subaru radiator conditioning coolant put in the car, got home with no problems (other than a 400 mile round trip for repairs) and the car ran fine for a few days and is back to overheating again.
Blue Devil said they had never heard of any of these problems. I'll just bet! DO NOT use this stuff unless you want to ruin your car!
The only reason it got one star is because the rating won't take no stars.
Do you have questions about this product?(earn points for answers!)
Ask a question, get answers from real customers and in-house experts. Or contact Customer Care by email or call 1-877-238-2623.
109 Questions | 121 Answers
Displaying questions 1-10Previous | Next »
Q:
I have read not too many good results for Subaru engines,is it reason why?Asked on 5/12/2013 by New Subaru owner1 answer
CUSTOMER CARE
A:
With reference to your inquiry on this Blue Devil Head Gasket Sealant (Part No. 38386), Subaru has two types of engines called Phase 1 and Phase 2. Some common terms which cause the engine failures are, For Phase 1: Overheating, often when slowing or stopped after extended high load driving, The overheating can be seemingly random and sporadic, Bubbles in coolant overflow reservoir, immediately after running, Sludgy residue in coolant overflow tank, Hydrocarbons in coolant overflow tank, this is tested by a mechanic with specialized equipment and is not evident visually. For Phase 2: Sweet smell after operating engine and then stopping, External fluid leakage (green) visible on engine or below car, Slowly dropping coolant level due to leakage. In order to assist you further, please provide the year, make, model and engine size of your vehicle application or you can contact us directly at 1-877-ADVANCE (238-2623) or visit your nearest Advance Auto Parts store for further assistance.Answered on 5/13/2013 by Max from AAP
Q:
Assuming I decide to go this route, how many times do I need to change my oil to remove sludge? I would like an answer not listed on the bottle thanks.Asked on 4/6/2013 by Sarge from Danville, IN1 answer
CUSTOMER CARE
A:
With respect to your inquiry on the Blue Devil Head Gasket Sealant - Part No. 38386 if you're in the habit of changing your oil regularly, if you drive long distances (15+ miles) at least 50% of the time, if the dipstick, dipstick tube and oil cap are very clean and show no signs of sludge build up maybe you should consider extending your oil change intervals 5,000 miles to 7,500 miles or so. For any further assistance please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.Answered on 4/8/2013 by John the Car-Doc from AAP
Q:
how is the product used is it simply pour in or what?Asked on 3/7/2013 by n/a from n/a1 answer
CUSTOMER CARE
A:
With reference to your inquiry on the Blue Devil Head Gasket Sealant - part# 38386, once you fill the cooling system with water, leave enough room for the recommended amount of Blue Devil Head Gasket Sealant - Part No. 38386. Remove the radiator cap and start the engine while cold, then turn heater to max. With the engine idling, slowly pour gasket sealant into the radiator (take 1 minute pour time for entire bottle or 30 seconds for 1/0 bottle). After pouring gasket sealant, slowly let vehicle idle with Cap on for 50 minutes. You do not need to flush the system a second time after process is complete (Gasket Sealant can stay in the system). After test drive, let engine cool before installing new thermostat. For any further assistance, please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.Answered on 3/7/2013 by Vincent from AAP
Q:
i have a 2001 chevy express 5.7 and my antifreeze and oil is mixing will blue devil fix this problemAsked on 2/14/2013 by cell from redford MI1 answer
CUSTOMER CARE
A:
This Blue Devil Head Gasket Sealant - part#38386 may help but I would always recommend fixing the problem by finding out exactly the cause of oil mixing with antifreeze and then replacing the necessary parts. For any further assistance, please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.Answered on 2/15/2013 by Vincent from AAP
Q:
I have a 2004 chevy impala 3.4l.. do i use the yellow label or the white pour n go label? And do i drain all fuild out and pull the theramstat out? thanksAsked on 2/14/2013 by candice from canton, mi1 answer
CUSTOMER CARE
A:
The Blue Devil Head Gasket Sealant (Part No. 38386) is compatible in gasoline and diesel engines. It stops leaks permanently. Yes, you need to flush the radiator and cooling system with a flushing agent after removing the bottom radiator hose. Flush thoroughly a second time with water to remove all traces of agent. You need not have to pull the thermostat out. For any further assistance, please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.Answered on 2/15/2013 by Steve from AAP
Q:
how much blue devil into 1992 Honda accordAsked on 1/15/2013 by jim from Northampton,Mass.010601 answer
CUSTOMER CARE
A:
The Blue Devil Head Gasket Sealant (Part No. 38386) repairs leaks in head gaskets, warped/cracked heads, heater cores, and freeze plugs. Features: 1 bottle (32 oz) treats a 4.5 gallon system. For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.Answered on 1/16/2013 by Steve from AAP
Q:
I have a 2001 Ford f150 with a 5.4L and it is leaking oil out the passanger side, back side of the head (no antifreeze in the oil). Will ths Blue Devil Sealant work for my problem? and will how would I apply the sealant?
Thanks!!!Asked on 1/6/2013 by Steve from WI1 answer
CUSTOMER CARE
A:
The Blue Devil Head Gasket Sealant (Part No. 38386) should work fine for your project. However, I would suggest taking your vehicle to a certified mechanic for a proper diagnosis before buying and having parts installed that may not (solve/be) the problem. For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.Answered on 1/7/2013 by Steve from AAP
Q:
will this product work on 1996 cadillac sedan deville northstar engine and do i need to remove thermostat to use and how many bottles should i useAsked on 12/17/2012 by meat from gainesville1 answer
CUSTOMER CARE
A:
Yes, this Blue Devil Head Gasket Sealant - (Part No. 38386) works in your 1996 Cadillac Sedan Deville Northstar engine and we recommend to remove thermostat because this is to be applied to a free flowing system and 1/2 bottle is enough for your vehicle. For any further assistance please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto store and one of our representatives will gladly assist you with any questions or concerns you may have.Answered on 12/18/2012 by Aaron from AAP
Q:
what happens if product is used on questionable head gasket leak?Asked on 12/16/2012 by jeff from United States1 answer
CUSTOMER CARE
A:
The Blue Devil Head Gasket Sealant (Part No. 38386) permanently seals cooling system leaks such as blown head gaskets, warped and cracked heads, heater cores, and freeze plugs. BlueDevil is non-clogging and contains no solid or particulate matter which can be harmful to the engine. It can be used on gasoline or diesel engines and bonds to metal, aluminum, cast, alloy, or plastic. The application process only takes 1 to 2 hours and the vehicle can be driven immediately. BlueDevil is safe to use in all water-cooled systems. It is non-clogging and is 100% chemical. It does not contain any filings or pellets that can plug up radiators. For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.Answered on 12/17/2012 by Steve from AAP
Q:
do i got to take my thermostat offAsked on 12/15/2012 by meachie from gainesville fl1 answer
CUSTOMER CARE
A:
Yes, we recommend that Blue Devil Head Gasket Sealant - Part No. 38386 be applied to a free flowing system. For any further assistance please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto store and one of our representatives will gladly assist you with any questions or concerns you may have.Answered on 12/16/2012 by John the Car-Doc from AAP
Displaying questions 1-10Previous | Next »
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