Best Oil Seal Stop Leak: image
Editor's Pick

Oil, which contains zinc anti-wear agent ZDDP, is specially formulated to help fight metal-to-metal friction by providing a thicker cushion between moving engine parts. The formula has been tested and found to be effective for cars up to six years. It also helps prevent the formation of carbon monoxide (CO2) in diesel engines. Notably, this product was launched in India in 2015. It is used in over 1 lakh vehicles worldwide.

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Leaks. It’s a one-stop leak seal that stops all minor engine oil, transmission and power steering fluid leaks. The product is made by Bar’s Leaks in the United States and has been approved by the National Highway Traffic Safety Administration (NHTSA). It can be installed on any vehicle with no need for special tools or training. Notably, there are over 1 lakh vehicles registered under the NHTSA.

Most Discussed

AT-205 Resealer is a fast acting resealer, which stops leaks fast. The formula contains no petroleum distillates and will not over-swell or breakdown seals. It can be used with conventional and synthetic oils to treat a 6 quart capacity. Not harmful to internal bearings and hydraulics, the product has a shelf life of one year. It is also suitable for use in oil lamps.

Best Oil Seal Stop Leak

Top 8 Best Oil Seal Stop Leak

1

Bar’s Leaks Oil Seal Engine Oil Burning and Leak Repair

1,130 ratings | 4 offers | 1,130 Reviews
Price: $12.39$32.95
Why we chose it
  • This premium quality synthetic blend works with all types of motor/engine oil including regular petroleum, high mileage, synthetic blends and fully synthetic formulas
  • Can also be used in heavy-duty applications as well as tractors, boats, RV’s, motorcycles (including wet clutch),ATV’s, lawn equipment
  • 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
  • Use 1/2 bottle for smaller systems (3. 5 – 4. 4 quarts of oil),in larger systems use 1 bottle for every 6 quarts, in small engines use approximately 3oz to every quart of oil
  • 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
Bar's Leaks Oil Seal Engine Oil Burning and Leak Repair: image
82%
customers recommend this product
4.1/ 5
Easy to use4.2
Value for money3.7
Mileage3.6
2

Bar’s Leaks Concentrated Rear Main Seal Repair – 16.9 oz

1,374 ratings | 23 offers | 1,374 Reviews
Price: $6.67$33.8
Why we chose it
  • 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
  • DOSAGE: One bottle treats 4 to 6 quarts of oil.
  • Seals timing cover, cam seal, rear main and other hard to stop oil leaks
Bar's Leaks Concentrated Rear Main Seal Repair - 16.9 oz: image
84%
customers recommend this product
4.2/ 5
Mileage4.1
Value for money3.8
3

ATP AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle

13,536 ratings | 4 offers | 13,536 Reviews
Price: $19.86$22.72
Why we chose it
  • Does not contain petroleum distillates, will not over-swell or breakdown seals
  • Compatible with conventional and synthetic oils, ATF, gear oil, power steering fluids and hydraulic oil
  • 8oz bottle will treat a 6 quart capacity, adjust accordingly
  • Professional strength fast acting resealer, stops leaks fast
  • Rejuivinates all rubber seals & gaskets in engines, transmissions, power steering, differentials and hydraulic systems
ATP AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle: image
90%
customers recommend this product
4.5/ 5
Easy to use4.8
Value for money4.2
Mileage4.1
4
Why we chose it
  • Starts working the minute you install and start driving the vehicle. You will usually see results in about 200 miles or three (3) days of driving
  • Also compatible with diesel and turbocharged engines
  • One bottle to treats one engine oil, transmission fluid or power steering leak in a standard passenger car or light truck
  • It works with all engine oil, transmission fluid and power steering fluids
  • Effectively seals all minor engine oil, transmission and power steering system leak
Bar's Leaks 1334-5PK One Seal Stop Leak - 11 oz, (Pack of 5): image
84%
customers recommend this product
4.2/ 5
Top Pick
5
Why we chose it
  • Helps stop leaks, noise and smoking
  • Excellent for all cars, light trucks and SUV’s
  • Use every oil change
  • Rejuvenates seals and gaskets
  • Contains zinc anti-wear agent ZDDP
STP High Mileage Oil Treatment, Formula for Cars & Truck, Stop Leak, Bottles, 15 Fl Oz, 15604B: image
92%
customers recommend this product
4.6/ 5
Easy to use4.7
Mileage4.6
Value for money4.5
6

Bar’s Leaks MS-1 Main Seal Motor Oil Leak Repair, 32 fl. Oz.

233 ratings | 2 offers | 233 Reviews
Price starts from: $24.99
Why we chose it
  • Repair leaking front and rear main seals
  • Synthetic blend, for all engines
  • Safe and easy to use, and works quickly
  • Best stop leak formula money can Buy
  • Stop cam and timing seal leaks
Bar's Leaks MS-1 Main Seal Motor Oil Leak Repair, 32 fl. Oz.: image
80%
customers recommend this product
4/ 5
Easy to use4.5
Mileage3.7
Value for money3.5
7

BlueDevil Rear Main Sealer

2,088 ratings | 7 offers | 2,088 Reviews
Price: $13.05$19.79
Why we chose it
  • Guaranteed Permanent Seal
  • Works in Gas or Diesel Engines
  • Restores Dried, Cracked and Shrunken Seals
BlueDevil Rear Main Sealer: image
82%
customers recommend this product
4.1/ 5
Value for money3.8
Mileage3.8
8
Why we chose it
  • Eliminates The Need For Expensive Repair
  • Restores Elasticity And Stretch Ability Of Rubber Gaskets And Seals
  • Stops Oil Leakages From The Engine And Prevents Their Emerging In The Future
  • Compatible With Motor Oils Of All Types
  • Reduces Engine Noise and Oil Consumption
XADO ATOMEX Stop Leak Engine Oil Additive Sealer (Bottle, 250 ml) - Repair Gaskets & Seals Treatment: image
84%
customers recommend this product
4.2/ 5
Mileage3.8
Value for money3
Top Pick
STP High Mileage Oil Treatment, Formula for Cars & Truck, Stop Leak, Bottles, 15 Fl Oz, 15604B
This high-viscosity formula, complete with anti wear agent ZDDP, is specially formulated to help fight metal-to-metal friction by providing a thicker cushion between moving engine parts.
Ranking the Brands
Bar’s Leaks: 50.00%
ATP Automotive: 12.50%
STP: 12.50%
BlueDevil Products: 12.50%
XADO: 12.50%

Comparison Table

Сomparison: Bar's Leaks Oil Seal Engine Oil Burning and Leak Repair: imageСomparison: Bar's Leaks Concentrated Rear Main Seal Repair - 16.9 oz: imageСomparison: ATP AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle: imageСomparison: Bar's Leaks 1334-5PK One Seal Stop Leak - 11 oz, (Pack of 5): imageСomparison: STP High Mileage Oil Treatment, Formula for Cars & Truck, Stop Leak, Bottles, 15 Fl Oz, 15604B: imageСomparison: Bar's Leaks MS-1 Main Seal Motor Oil Leak Repair, 32 fl. Oz.: imageСomparison: BlueDevil Rear Main Sealer: imageСomparison: XADO ATOMEX Stop Leak Engine Oil Additive Sealer (Bottle, 250 ml) - Repair Gaskets & Seals Treatment: image
Bar’s Leaks Oil Seal Engine Oil Burning and Leak RepairBar’s Leaks Concentrated Rear Main Seal Repair – 16.9 ozATP AT-205 Re-Seal Stops Leaks, 8 Ounce BottleBar’s Leaks 1334-5PK One Seal Stop Leak – 11 oz, (Pack of 5)STP High Mileage Oil Treatment, Formula for Cars & Truck, Stop Leak, Bottles, 15 Fl Oz, 15604BBar’s Leaks MS-1 Main Seal Motor Oil Leak Repair, 32 fl. Oz.BlueDevil Rear Main SealerXADO ATOMEX Stop Leak Engine Oil Additive Sealer (Bottle, 250 ml) – Repair Gaskets & Seals Treatment
BrandBar’s LeaksBar’s LeaksATP AutomotiveBar’s LeaksSTPBar’s LeaksBlueDevil ProductsXADO
ManufacturerBar’s ProductsBar’s LeaksATPBar’s LeaksSTPBar’s LeaksBlueDevil Products
Item Weight1.1 pounds1.1 pounds1.76 ounces1 pounds15.7 ounces2 pounds9.9 ounces10.4 ounces
Product Dimensions1.9 x 3.4 x 7.7 inches7 x 4.5 x 4 inches6.5 x 3 x 1.8 inches7.22 x 3.65 x 1.85 inches4.38 x 2.56 x 9.06 inches2 x 2 x 6 inches
Is Discontinued By ManufacturerNoNoNoNoNoNo

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