Blue Devil Head Gasket Sealer Review – All You Need To Know

When a product receives feedback from nearly 300 users you can get a pretty good feel for whether it’s right for you.  And that is the case with Blue Devil Head Gasket Sealer.  It’s received some excellent feedback recently, and as it’s currently available with FREE SHIPPING we thought we’d take a closer look.

Blue Devil Head Gasket Sealer Review

The Good: Blue Devil Head Gasket Sealer is a quick solution for problems such as small leaks and minor maintenance jobs. Repairs can be very costly, and that is why more and more people are looking to solutions like this. It’s fast-acting and easy to use and you’ll save a small fortune in services by applying some of this sealer.

The Bad: While the product seems to work as intended, according to a few consumers there are a couple of things you may not like about it. For example, a few buyers mention that the directions are a bit confusing (although we personally don’t agree). Also, they say that the bottle does not let you see how much you’ve used (which we do agree with), so you can end up pouring a bit too much sealant over a leak if you’re not careful.

The Bottom Line: If you’re careful when applying it this product is a great choice.  It does a very good job and provides a permanent repair to a number of head gasket problems.


Any vehicle, no matter how dependable, is bound to develop a few problems from time to time, and several of them are likely to be leaks.

With that in mind Blue Devil Head Gasket Sealer is a product that you should consider having to hand (either in your car or your garage), as it can fix such issues without too much trouble.

One of the major concerns regarding the use of a sealer inside a vehicle, and particularly with tasks involving the engine, is that some sealers can damage the engine and connecting parts.

Thankfully when you use this product you don’t have to worry about a thing. There are no solid compounds in the sealer meaning that there are no particles present to cause any damage.

While this is great for your peace of mind, you might wonder how well the sealer works.

Well, as far as self-help remedies go, it does as good a job of repairing small leaks as you’ll find without going to a professional mechanic.

No matter if you are dealing with a blown head gasket, a cracked head, or damage to a freeze plug, this sealer will do the job.

It may not be a miracle cure, but it helps with small tasks that would otherwise require quite heavy repairs if left unattended to get worse.


A quick look at the key features of this leading sealer (the manufacturers claim on the bottle that it’s the number 1 in the country) might help you decide whether this is the product you are looking for or not. Here’s a brief overview:

  • No solid matter is among the components
  • It will not harm your engine
  • It is safe to use
  • Easy to apply
  • It can permanently repair small leaks

Some people are reluctant to use sealing products because they’re afraid they might not do it properly.  However this sealer comes with a good set of instructions that show you exactly how to use it to avoid any damage to your car or yourself (and we think they’re pretty straightforward).

Blue Devil Head Gasket Sealer In Action

For a bit more info check out this short clip from the manufacturer:

Customer Reviews and Scores

Want to know what independent users are saying about it?  We did, so we did the homework for you.

From 273 reviews on Amazon this sealer has an average customer score of 3.7 stars out of 5, which means it’s made a very solid impression.

Of those reviewers nearly 60% gave it the maximum 5 stars out of 5 (which is excellent), with very few giving it less than 4.

The main reasons why customers were so pleased with it were that they largely found it very easy to use, and that it saved them a lot of cash in repair costs.

Conversely a few reviewers found the instructions a little unclear (we did not have that problem ourselves however).

Blue Devil Head Gasket Sealer – Conclusion

Blue Devil Head Gasket Sealer will help you deal with small repair jobs on your own, and will help you to avoid bigger problems (and therefore bigger repair bills) in the future.

For small leaks it does an excellent job, and it can also help with older vehicles that require a bit of maintenance.

Highly recommended.

At the time of review it was available at a GREAT PRICE and came with FREE SHIPPING.



For some great alternative options check out our reviews of K-Seal and Steel Seal here.

You can find out more here.

If you’d like to know a bit more about head gaskets and how they work then take a look at this handy article by Haynes.

How did you get on with sealing your leak?  Let us know below…


Sharing is caring!

Leave a Reply