Blue Devil Oil Stop Leak Review – All You Need To Know

Blue Devil Oil Stop Leak Review – All You Need To Know

There’s nothing worse than finding out that your engine has a leak. Not only is it bad for your car and for the environment, but it can end up costing you a tremendous amount of money to repair.

Did you know that there is a way that you can solve your leaking engine troubles without having to foot a hefty bill? It’s true! Thanks to Blue Devil Oil Stop Leak, you can seal up the leaks in your engine, protect your car, and save yourself a good chunk of change.

Blue Devil Oil Stop Leak Review

What is Blue Devil Oil Stop Leak?

Leaks in a vehicle’s engine are a fact of life. Age and driving exposes the engine to pressure and heat, which can cause the o-rings, gaskets and other seals within this integral car part to harden, dry up or drink.

Over time, this can cause cracks, holes and other gaps to develop in the engine, which can lead to oil leaks. Stop leak additives are non-solvent chemical formulas that are comprised of a mixture of modifiers that cause friction, as well as other refined petroleum ingredients.

These compounds are intended to minimize the amount of oil that passes through those worn seals and holes.

Essentially, stop leak additives revive the seals in the engine, allowing them to return to their normal shape, size and flexibility, thereby reducing or preventing oil leaks.

Revive Those Seals!

There are a lot of engine stop leak additives on the market, but unfortunately, many of them aren’t properly formulated.

This means that they either: 1) won’t do anything to the seals, so they won’t slow or prevent oil leaks, or 2) they could possibly do more damage to the seals and the engine, on a whole, causing an even bigger problem.

A Cost-Effective Solution…

Blue Devil Oil Stop Leak is one of the best engine oil stop leak additives currently on the market.

Created by the Blue Devil company, which has been around for years and has developed an excellent reputation for delivering exceptional products, making it one of the most trusted car additive manufacturers around.

This oil stop leak formula is made with only the highest quality ingredients. It’s designed to soak into all of the seals within the engine, expanding them and reviving them back to the size and shape that they were when the engine was first made.

It won’t clog your engine up!

This product is free of harmful solvents, such as petroleum distillates, that have a reputation for destroying seals after they initially expand them.

Unlike other stop leak products, Blue Devil won’t clog your engine or cause any other damage.

It’s also designed to be used with a wide range of diesel and gasoline engines and can treat either 4 or 6 quarts of motor oil. In fact, Blue Devil is so confident that their stop oil leak additive will work that they will fully refund your money if it doesn’t.

Directions for Use

Using the Stop Leak is pretty simple and straightforward. The directions for use are as follows:

  • Pour the entire contents of the 8 ounce bottle directly into the oil sump or crank case of the leaking component of your engine.
  • Once the solvent has been added, start up the engine and drive your vehicle.

For most leaks, the additive should seal up the leak within 1 to 2 hours. However, if your engine has an extreme leak, it could take up to 2 days of drive time for the leak to fully stop.

Here’s a short clip to help:

Blue Devil Oil Stop Leak can be used on the following components:

  • Gear cases
  • Refillable shock absorbers
  • Axle seals
  • Gearboxes
  • Gear differentials
  • Pinion seals

While it can be used on various components, it is important to note that it cannot be used in your vehicle’s brake system or on any surfaces that have been painted.

You should also use extreme care while using it and avoid making contact with your eyes and skin. As a precaution, make sure you wear protective clothing and eyewear while using this product.

Blue Devil Oil Stop Leak Pros

There are several things that we like about the Blue Devil Oil Stop Leak additive. Some of the most notable benefits of this product include:

  • It permanently seals all seeping oil leaks
  • It doesn’t cause any additional damage to an engine
  • In most cases, it works within just a few hours
  • It’s extremely easy to use
  • It treats 4 to 6 quarts of motor oil
  • It works with the majority of gasoline and diesel engines

Blue Devil Oil Stop Leak Cons

Overall, we were very pleased with this additive; however, there were a few things that might be a little off-putting for some users. There are three particular downsides that we noted with this product:

  • It may not seal properly with leaking gaskets
  • It may not work with all engines
  • If the damage is extensive, it may not prevent leaks

Customer Reviews

Blue Devil Oil Stop Leak has received an overall score of 3.7 stars out of 5 on Amazon. Of the 200 people who reviewed it, 51 percent gave the product 5 stars, and verty few gave it less than 3 or 4.

Those who offered high reviews said that the product really works to either stop or slow leaks, that it’s easy to use, and that the price is very affordable.

Those who weren’t so happy with the product said that it didn’t work with certain components that were causing leaks, such as the valve cover gasket.

Final Thoughts

When it comes to oil stop leak additives, Blue Devil is one of the best on the market. It is made of the highest quality ingredients, it’s easy to use, it works with most gasoline and diesel engines, and in most cases, it either stops or slows leaks.

And for the price it can’t be beaten.  At the time of review it came with a 15% DISCOUNT.



Hopefully that’s helped.

As an alternative you could try ATP AT 205 Reseal instead.

Have you had an oil leak recently?  If so, how did you fix it?  Let us know below…

For a great guide on how to troubleshoot oil leaks check out this article on WikiHow.

Or why not read our new post on fixing oil in your coolant.


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