Best Oil Stop Leak Additive

best oil stop leak additive

Blue Devil Oil Stop Leak

The Blue Devil is the best oil stop leak additive for those who want performance and reliability. It is a popular brand in the auto industry and works marvelously all the time.


In recent years, the using the best engine oil leakage has become the focus of the domestic auto industry. More and more people begin to pay attention to this problem. Most of the engine oil leakages are caused by aging of the internal seals, usually after years of driving, but sometimes they happen to the new cars too. They make our cars very leaky, noisy and smoky, and increase the risk of fire. If we want a safe car and a clean garage in our house, this is the problem we are directly facing.

Most of us do not know how to deal with those annoying situations. Those problems might involve changing some seals and other components, and can be very expensive. They are nearly impossible to be fixed without professional skills and tools. You may even spend more than the car values. Fortunately, we can use some engine oil stop leak additive to handle them.

Engine oil stop leak additives are cheap, safe, convenient and effective. We can easily get them on the market for no more than 20 bucks each bottle. They are so easy to use that all we have to do is add some in our engine oil and drive. After about 100 miles of driving, you will find that your car stopped leaking. No dirty oil drops, no choking smokes, no disturbing noises, just like the day you bought your new car. Although sometimes the products are not effective enough to completely stop the leaking, they still slow it down and reduce the oil consumption. That is a very good measure to prolong the life of your car, before you replace it with a new one.

There are hundreds of products on the market, some of them may not be reliable. It would be a waste of money and time if we use untested engine oil stop leak additives. How to find the best? After testing dozens of the most famous products, We selected 5 out of them. These 5 products are considered to be the best engine oil stop leak additives.

What is the Best Oil Stop Leak Additive?

Blue Devil Oil Stop Leak

best oil stop leak additive

Looking for an engine oil stop leak additive? Check the Blue Devil Oil Stop Leak. It is one of the best engine oil stop leak additives on the market. The Blue Devil company, which developed the product, has been in business for years. The Blue Devil is a mature product as it has been accepted by hundreds of consumers. It has been proved to be effective and cheap.

The product contains 8 ounces of oil stop leak additive. It truly can deliver the sealing capability. As we tested, it is more effective than most of the products on the market. It is designed for rubber parts, so it also works on both the diesel and gasoline engines. There are some failures when working on some engines. It can be noticed that it didn’t seal well the leaking gaskets. We may have to choose the rear main seal stop leak product of Blue Devil when we are facing problems with our rear main seals. It’s not so disappointing because it does great in most of the time.

The Blue Devil is quite easy to use. To stop the leaking, we need to add all of it in our engine oil. We can easily do it at home. After about 100 miles of driving, it will cover the seals and fix them. Then, no more leaking, no more blue smoke. Yes, the blue devil around the hood is completely banished.

Someone may worry about the safety of the product. As there was not any fire or explosion that took place in our testing engine, it is unnecessary to be anxious. Actually, it does not harm the engine. It’s much safer than those no-name product you find on the market.

The secret that makes the product so effective is some of the top components used by the manufacturer. For this reason, the price of the Blue Devil, which is lower than 11 dollars, is not expensive. It is a good pick when choosing the best engine oil stop leak additive products.


ATP AT-205 Re-Seal Stops Leaks

best oil stop leak on the market

ATP Automotive produces one of the best oil leak additives. In fact, testing of this product is considered to be unnecessary, since it has already been tested by hundreds of consumers for years. It has been used in different engines by many people from different cities, and is proved to be professional and fast acting. We still seriously tested the product, and we confirmed that the market told the truth.

As we tested, it works great with many different kinds of oils. In most of the experiments, it stops the leaking after driving for no more than 5 hours. At the same time it can be used in not only engines but also transmissions, power steering, differentials and hydraulic systems. All dried out rubber seals and gaskets are basically rejuvenated after using it, and the engines are not corroded by any component of the product. It has a relatively reasonable price comparing with products from other companies. These reasons explain why the AT-205 Re-Seal has gained high ratings for years and no one can beat it. It is definitely the best engine oil stop additive today.

The ATP AT-205 Re-Seal is the clearly the best oil leak additive on the market if you are looking for a solution that is versatile. But how do you use it? Don’t worry, it’s much easier than driving. As the manufacturer told us, if we want to see the best results, just dump the whole 8 ounce bottle in your engine oil. It will circulate to the different parts of the engine, and soon cover the oil seals and the rear main seal. It’s OK to use it for other leaking problems, but make sure that your leaking problem is caused by rubber parts, or it would not be very helpful.

Just like other similar products, it may not be that helpful working on aged metal parts of old cars. If the car is not so old as if it will tear apart at any time, the product will be working as expected, or even better.


Bar’s Leaks 1040 Grey Rear Main Seal Repair Concentrate

best oil leak sealer

Your car is leaking and smoking as if it is about to explode. You drive it to the garage, and you are told that it has a problem with your rear main seal and you may need to change it. That will cost you a bundle to completely fix it. Not a good choice for your old car, is it? Buying a new car just because some oil drops seems irrational. Now you have a better option: the Bar’s Leaks. The product we are talking about is a kind of engine oil stop leak additive and is professional designed for hard to stop oil leaks.

Bar’s Leaks 1040 Grey Rear Main Seal Repair Concentrate is the best oil stop leak additive if your car is badly leaking. It works when our rear main seal leaks. Bar’s Leaks also works on leaks of seals timing cover, cam seal, rear main and other worn or dried seals. It restores them quickly and safely and our car will soon be able to get back on the road. If you have a gasoline or diesel engine using conventional, high mileage or synthetic oil, don’t worry, it works. It works on most of the rubber parts it covered, renews them and make them to work smoothly again.

The product is easy to use. We simply add a whole bottle of it (or half a bottle if you have a small engine) to engine oil, and it shows the effect while driving. After a few hours of driving, we can notice that the leaking stops and the annoying smoke is disappeared. It does no harm to gaskets or other parts of our engine and lubricates them. That means we can use it to prevent future leaking.

Nearly 80 percent of consumers on Amazon gave ratings of more than 4 out of 5 stars, and we made the same evaluation. It is proved to be really effective, easy to use and affordable. No longer spending our money on a costly repair bill, the Bar’s Leaks will help us to fix the leaking in a less expensive way.


Lucas Oil 10278 Engine Oil Stop Leak

best oil additive to stop smoking

To deal with an engine oil leak, Lucas Oil provides us the best choice of engine oil leak additives. Their flagship product is the Lucas Oil 10278 Engine Oil Stop Leak. Lucas Oil is a very famous company, which provided many different products for oil issues for years. Their products are widely accepted by consumers all around the world. We can believe in this product just like other Lucas Oil products. It is one of the best engine oil stop leak additives on today’s market.

It is a Lucas additive of new formulation. The manufacturer did great job in the past, and this is their latest masterpiece. It is compatible with petroleum, semi-synthetic and full synthetic motor oils, and contains no corrosive component which is harmful to our engines.

It shows to be quite effective on leaking problems. The worn seals renewed by it would work easily again. As we tested, it can reduce engine noise and oil consumption, and raise oil pressure at the same time. Our car won’t be noisy as a ticking bomb after using it. But unfortunately, it can’t stop the leak completely in some case such as a head gasket or a rear end. It depends on materials. And it’s not a permanent fix to damaged engines. In that case, we should try other series of Lucas Oil products, or take the car to the garage. The good thing is even in that case this product greatly slows down the leak. It works great as a temporary measure.

How to use? Just follow the instructions, or call the manufacturer if you are not sure. 20 percent of the system capacity would be enough. Add it in our oil, and drive several hundreds of miles to help it spread in the engine. Then we will get our car smooth and quiet again.


No Leak 20401 Engine Oil Stop Leak

best engine stop leak

It is actually funny to have the name ‘NO LEAK’ as a producer of engine oil leaking additives. But seriously, the product works. We can notice that the smoking is stopped after using it. This 16 ounce bottle of engine oil leak additive provides the functions of stopping and preventing engine oil leaks, which caused by dried, shrunken, or harden seals. If your rear main seal leaks, it works good. However, it is not recommended for use in other cases and seems to be not effective enough. If you have problems with other parts of your car, you should purchase the specific product design for that part.

If you bought this product and are going to use it, make sure the leaking part is the rear main seal. It does not work with leaky head gasket. Additionally, you don’t have to change your oil. Just add it and leave it in while driving until the leak stop. Do as the instructions said and don’t over fill the crankcase. It is OK to use it whenever you find a leak, no matter if it’s tiny or not. It does good on preventing. You will get a NO LEAK engine as expected if nothing unexpected happens.

Since it’s cheap, people may worry about the safety. When we tested it in our lab, we found it is compatible with all engine oils. There are no fire, no explosions and no corrosion. Overall, it is just as safe as its competitors. What we want to emphasize is that it is cheap. We can’t ask a 7 dollar product for more. It is the best engine oil stop leak additive you can find in those cheap products. It is way much better than bringing our car to the garage and spend a lot on the repair bills.




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