Top 10 Oil Leak Additives
for July 2021

Recommendations are independently chosen by MOOZ’s editors. Purchases you make through our links may earn us a commission.

1
9.7
SCORE
XADO ATOMEX Stop Leak Engine Oil Additive Sealer (Bottle, 250 ml) - Repair Gaskets & Seals Treatment

XADO ATOMEX Stop Leak Engine Oil Additive Sealer (Bottle, 250 ml)

Repair Gaskets & Seals Treatment

What We like

Compatible With Motor Oils Of All Types

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Product Features

  • Stops Oil Leakages From The Engine And Prevents Their Emerging In The Future
  • Reduces Engine Noise and Oil Consumption
  • Eliminates The Need For Expensive Repair
  • Restores Elasticity And Stretch Ability Of Rubber Gaskets And Seals

Restores elasticity and stretch ability of rubber gaskets and seals Eliminates the need for expensive repair Reduces engine noise and oil consumption Stops oil leakages from the engine and prevents their emerging in the future

2
9.5
SCORE
Bardahl 3119 Gear Oil Additive Plus Stop Leak - 8 oz.

Bardahl 3119 Gear Oil Additive Plus Stop Leak

8 oz.

by Bardahl
What We like

Suitable for use in all types of manual transmissions and differentials that specify standard automotive gear oils or motor oil as the lubricant

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Product Features

  • Improves synchronizer performance, decreasing shift effort in manual transmissions
  • Conditions seals and eliminates leaks
  • Extends gear oil life
  • Protects against gear wear and reduces gear noise

Conditions seals and eliminates leaks Extends gear oil life Improves synchronizer performance, decreasing shift effort in manual transmissions Protects against gear wear and reduces gear noise

3
9.3
SCORE
Lucas Oil Products LUC10278 Engine Oil Stop Leak, 1 Quart, 1 Pack

Lucas Oil Products LUC10278 Engine Oil Stop Leak

1 Quart, 1 Pack

by Lucas Oil Products
What We like

Country Of Origin: United States

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Product Features

  • Package Dimensions: 8.89 L X 10.16 W X 30.48 H (Centimeters)
  • Product Type: Auto Oil
  • Package Weight: 0.953 Kilograms

Package dimensions: 8.89 l x 10.16 w x 30.48 h (centimeters) Package weight: 0.953 kilograms Product type: auto oil

4
9.1
SCORE
Bar's Leaks-1010 Engine Oil Stop Leak Concentrate - 11 oz Pack of 1, Grey

Bar's Leaks-1010 Engine Oil Stop Leak Concentrate

11 oz Pack of 1, Grey

by Bar's Leaks
What We like

Restores gaskets; seals to stop and prevent engine oil leaks

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Product Features

  • Works with all types of motor oil
  • Stops and seals motor oil leaks

Stops and seals motor oil leaks Works with all types of motor oil

5
8.7
SCORE
LM 1005 Oil Leak Stop 300 ml

Liqui Moly LM 1005 Oil Leak Stop 300 ml

by Liqui moly
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6
8.6
SCORE
Lucas Oil 10019 Hydraulic Oil Booster and Stop Leak - 32 oz, White

Lucas Oil 10019 Hydraulic Oil Booster and Stop Leak

32 oz, White

by LUCAS OIL
What We like

Removes varnish and restores pressure for more efficient operation

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Product Features

  • Extends life of hydraulic fluid up to 2 times
  • Conditions old seals and O-rings to stop and prevent future leaks
  • Specially suited for use in equipment with wet brakes

Specially suited for use in equipment with wet brakes Extends life of hydraulic fluid up to 2 times Conditions old seals and o-rings to stop and prevent future leaks

7
8.6
SCORE
LUCAS 10018 Hydraulic Oil Booster with Stop Leak, 1 Gallon, Brown

LUCAS 10018 Hydraulic Oil Booster with Stop Leak

1 Gallon, Brown

by Lucas
What We like

Increases equipment life

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Product Features

  • Prevents major overhauls
  • Reduces heat
  • Manufactured in china
  • Lucas, gallon hydraulic oil booster & stop leak, additive for hydraulic systems that stops leaks & increases hydraulic pressure
  • Adds extra shine to your product

Stops leaks Manufactured in china Adds extra shine to your product Prevents major overhauls Reduces heat Lucas, gallon hydraulic oil booster & stop leak, additive for hydraulic systems that stops leaks & increases hydraulic pressure

8
8.3
SCORE
NO LEAK 20401 Engine Oil Stop Leak, 16 Fl oz.

NO LEAK 20401 Engine Oil Stop Leak

16 Fl oz.

by Gold Eagle Co.
What We like

Safe & compatible with ALL engine oils

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Product Features

  • Recommended for rear main seal repair
  • Stops AND prevents engine oil leaks caused by dried, shrunken, or harden seals
  • Stops smoke and repairs rear main seals

Stops and prevents engine oil leaks caused by dried, shrunken, or harden seals Recommended for rear main seal repair Stops smoke and repairs rear main seals

9
8.3
SCORE
Lucas Oil 10018 Gal. Hyd.Oill Booster/Stop Leak 1 Gallon

Lucas Oil 10018 Gal. Hyd.Oill Booster/Stop Leak 1 Gallon

by LUCAS OIL
What We like

Lucas Hydraulic Oil Booster & Stop Leak; Gallon (10018)

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10
8.3
SCORE
Hi-Gear LEAKS NO MORE 444ml Can Engine Oil Stop Leak

Hi-Gear LEAKS NO MORE 444ml Can Engine Oil Stop Leak

by Hi-Gear
What We like

Treats up to 5 quarts of oil

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Product Features

  • Stops leaks in 300 miles (500 kilometer)
  • Compatible with all oils - industrial, motor, mineral, synthetic and diesel
  • Restores elasticity
  • Stops leaks in industrial gear boxes

Stops leaks in industrial gear boxes Restores elasticity Compatible with all oils - industrial, motor, mineral, synthetic and diesel Stops leaks in 300 miles (500 kilometer)

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