Best Oil Leak Stop Additive in 2022 (Top 15 Picks)

Sometimes it might be quite difficult to find the best oil leak stop additive. With every niche market offering so many different products, it makes sense that this is the case.

Unfortunately, this very fact can make it incredibly difficult to find the item that best suits your needs, which is why we’ve put together this oil leak stop additive buying guide.

Quick Picks:

The 15 Top Oil Leak Stop Additive Reviews:

Bestseller No. 1
Bar's Leaks Oil Seal Engine Oil Burning and Leak Repair
  • This Premium Quality Synthetic Blend Works With All Types Of Motor/Engine Oil Including Regular Petroleum, High Mileage, Synthetic Blends And Fully Synthetic Formulas
  • Works In All Gasoline And Diesel Engines Including Turbocharged, Eco Boost, Hybrid And Even Racing Engines, Including 3, 4, 5, 6, 8 And 10 Cylinder Engines In All Cars, Trucks, Vans And Suv'S
  • Can Also Be Used In Heavy-Duty Applications As Well As Tractors, Boats, Rv'S, Motorcycles (Including Wet Clutch), Atv'S, Lawn Equipment
  • In Most Cases The Oil Leak Issue Will Be Repaired With A Single Dosage. However, For Best Results And To Prevent The Problems From Reoccurring, Use With Every Other Oil Change, Or Once Per Year
Bestseller No. 2
High Mileage Oil Treatment, Stop Leak Formula for Cars and Trucks, 15 Oz, STP
  • One 15 fl oz bottle of STP High Mileage Oil Treatment + Stop Leak
  • ZDDP oil additive prevents wear to protect your high-mileage vehicle
  • High-viscosity formula creates a thick cushion between moving engine parts to reduce friction
  • Leak stopper helps prevent engine leaks, noises and smoking and helps to rejuvenate seals and gaskets
  • Add this oil treatment to engine oil during every oil change
Bestseller No. 3
Lucas Oil Products LUC10278 Engine Oil Stop Leak, 1 Quart, 1 Pack
  • Product Type: Auto Oil
  • Package Dimensions: 8.89 L X 10.16 W X 30.48 H (Centimeters)
  • Package Weight: 0.953 Kilograms
  • Country Of Origin: United States
Bestseller No. 4
Lucas Oil 10278 Engine Oil Stop Leak, 1 Quart
  • Compatible with petroleum, semi-synthetic and full synthetic motor oils
  • Renews worn seals with no risk of damage or eventual corrosion
  • Reduces engine noise and oil consumption, while raising oil pressure
  • Contains no harmful solvents
Bestseller No. 5
Bar's Leaks Rear Main Seal Repair, 16.9 oz
  • Seals timing cover, cam seal, rear main and other hard to stop oil leaks
  • Add to engine oil
  • Specifically designed to seal rear main leaks, but also works better than a conventional stop leak on all other leaks
  • Add entire bottle of Rear Main Seal Repair to engine crankcase (where you add oil) at or between oil changes. Do not overfill. Most leaks will stop within 100 miles or 2 days of driving
Bestseller No. 6
Bar's Leaks High Mileage Engine Repair, 16.9 oz
  • Increases Oil Pressure
  • Reduces Friction
  • Helps Clean Internal Parts
  • Quiets Noise
Bestseller No. 7
ATP AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle
  • Professional strength fast acting resealer, stops leaks fast
  • Rejuivinates all rubber seals & gaskets in engines, transmissions, power steering, differentials and hydraulic systems
  • Compatible with conventional and synthetic oils, ATF, gear oil, power steering fluids and hydraulic oil
  • Does not contain petroleum distillates, will not over-swell or breakdown seals
  • 8oz bottle will treat a 6 quart capacity, adjust accordingly
Bestseller No. 8
Bar's Leaks Axle and Differential Gear Repair
  • Seal Conditioner – stops current and prevents future leaks by protecting and reconditioning seals.
  • Extreme Pressure (EP) and Anti-Wear (AW) Agents – provide excellent metal-to-metal wear protection reducing noise and gear temperatures. Our sulfur, nitrogen and phosphorus additives meet the requirements of API GL-4 and GL-5 specifications.
  • Friction Modifier – supplements the EP/AW additives to help reduce noise and wear. This in turn helps shifting in a manual transmission and also stops chatter in limited-slip posi-traction axles.
  • Performance Additive Booster – includes tackifying agents and highly sheer-stable multigrade viscosity modifiers to keep oil on the gears and bearings where it can better lubricate, especially at higher temperatures. Pour Point Depressant (PPD) allows product to flow even at very low temps.
  • Manufactured in the USA, this product works in all manual gearboxes, differentials, open & posi axles and more. Stops pinion, axle, output shaft and other seal leaks. Reduces grinding, whining, clunking and protects gears.
SaleBestseller No. 9
Liqui Moly 2020 Motor Oil Saver - 300 ml
  • Reduces oil consumption via the piston rings and valve guides
  • Prevents blue, smoky exhaust fumes
  • Prevents leaks due to leaks at elastomeric seals
  • Regenerates engine seals made of plastic and rubber
  • Prevents pollution of the environment due to oil dripping from the engine
SaleBestseller No. 10
Bar's Leaks 1010 Engine Oil Stop Leak Concentrate, 11 oz, 1 Pack, Grey
  • Stops and seals motor oil leaks
  • Works with all types of motor oil
  • Restores gaskets; seals to stop and prevent engine oil leaks
  • Compatible with vehicle type: Car
Bestseller No. 11
Lucas Oil 10279 Engine Oil Stop Leak - 1 Gallon
  • Compatible with petroleum, semi-synthetic and full synthetic motor oils
  • Renews worn seals with no risk of damage or eventual corrosion
  • Reduces engine noise and oil consumption, while raising oil pressure
  • Contains no harmful solvents
SaleBestseller No. 12
No Leak, All in One Stop Leak
  • Seals leaks including: Power Steering, Transmission, Engine Oil, and Gear Oil
  • Stops smoke and repairs rear main Seals
  • Stops squeals and repairs O-rings
  • Stops hard shifting - Stops hard shifting
  • 100% Money back guarantee
SaleBestseller No. 13
Bardahl 3119 Gear Oil Additive + StopLeak - Extreme Pressure Lubricant Extends Gear Life and Stops Leaks by Conditioning Seals - 8 oz. (Pack of 1)
  • Extends gear oil life
  • Conditions seals and eliminates leaks
  • Protects against gear wear and reduces gear noise
  • Improves synchronizer performance, decreasing shift effort in manual transmissions
  • Suitable for use in all types of manual transmissions and differentials that specify standard automotive gear oils or motor oil as the lubricant
Bestseller No. 14
Engine Oil Stop Leak Top Off Additive/12x1/Quart
  • Automotive Engine Oil Additives
  • Automotive Engine Oil Additives
  • Automotive Engine Oil Additives
  • Automotive Engine Oil Additives
  • Automotive Engine Oil Additives
Bestseller No. 15
XADO ATOMEX Stop Leak Engine Oil Additive Sealer (Bottle, 250 ml) - Repair Gaskets & Seals Treatment
  • Restores Elasticity And Stretch Ability Of Rubber Gaskets And Seals
  • Stops Oil Leakages From The Engine And Prevents Their Emerging In The Future
  • Eliminates The Need For Expensive Repair
  • Reduces Engine Noise and Oil Consumption
  • Compatible With Motor Oils Of All Types

Last update on 2022-12-04 / Affiliate links / Images from Amazon Product Advertising API

How to find the best oil leak stop additive?

Here, we’ll be going over a number of factors that you can use to ensure that you’re purchasing the best oil leak stop additive for you.

Regardless of which type of item you’re looking to buy, chances are that there are existing buying guides on the internet, all of which aim to give you good oil leak stop additive recommendations.

Despite these recommendations, however, it’s always a good idea to do your own research. In addition to this research, asking yourself the following questions is also super helpful:

  • What features does the oil leak stop additive need to have to be perfect for my needs?
  • What is my budget?
  • Do I need to purchase a certain brand?

Once you’ve answered these questions and have a good idea of what you’re looking for and the buying process becomes much easier. Keep in mind that when looking for the best product, there’s no need to rush. In fact, very rarely are the ideal products found by choosing the first one you see or by basing your decisions on only one factor. Take your time and enjoy the process!

Now, with the answers to the previous questions in mind, we urge you to use our upcoming buying guide for oil leak stop additive to find what you’re looking for:

Brand

In some cases, the brand of oil leak stop additive is very important. For example, if you’re looking for an item that works in tandem with another, you might very well need both products to be the same brand. If this is the case, it’s vital to pay attention to this factor, as choosing the wrong product can mean the difference between wasting your money and buying a great product that functions as it should.

Features

The features in any given oil leak stop additive are important because they can dictate which version of an item you need and how much money you need to spend. Consider all the key features that you want your item to have and don’t settle for anything that doesn’t check at least ¾ of your boxes.

Reviews

Customer reviews about oil leak stop additive are crucial – especially when you’re buying a product that costs a lot of money or serves a big importance. Luckily, most products can be found online, which means that it’s common for there to be scores of customer reviews from those who have already purchased any given product.

Pay attention to these reviews. Take note of the pros and cons that they mention, and factor these into your big decision. In some cases, you’ll be forced to sacrifice one con in order to gain a particular pro, but being aware of the potential con is going to be beneficial in either case.

Quality

Of course, quality is key. You don’t want to purchase a low-quality product. If you do, you run the risk of your item breaking, not working properly, or otherwise proving to be very disappointing, as well as a waste of money.

You can compare oil leak stop additive quality by researching what your potential purchases are made from, contrasting the individual items against each other to discern which one is made of the best materials.

Warranty

Warranty isn’t always going to be important, but it definitely can be. This is especially true if the item in question is tech-related or expensive. A good warranty will be valid for an extended time after purchase and cover a variety of problems ranging from item defects to random accidents, water damage, and other miscellaneous events that could ruin your product.

Conclusion

The quest to find the best oil leak stop additive can be daunting – but it doesn’t have to be. It can be made much easier by asking yourself a few simple questions and then thinking critically about the items you want to buy. Consider their features, quality, brand, warranty, and customer reviews and you’re more likely to make a great purchase.