Top 10 Oil Additives To Stop LEAKS
for June 2021

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

1
9.9
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

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

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

2
9.9
SCORE
BlueDevil Oil Stop Leak

BlueDevil Products BlueDevil Oil Stop Leak

by BlueDevil Products
What We like

Package Weight : 1.0 pounds

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Product Features

  • Package Dimensions : 3.25 L x 6.0 H x 1.0 W (inches)
  • Made in United States
  • Permanently seal seeping or dripping oil leaks

Made in united states Permanently seal seeping or dripping oil leaks Package dimensions : 3.25 l x 6.0 h x 1.0 w (inches)

3
9.1
SCORE
Lucas Oil 10278 Engine Oil Stop Leak, 1 Quart

Lucas Oil 10278 Engine Oil Stop Leak

1 Quart

by Lucas Oil
What We like

Contains no harmful solvents

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Product Features

  • Reduces engine noise and oil consumption, while raising oil pressure
  • Compatible with petroleum, semi-synthetic and full synthetic motor oils
  • Renews worn seals with no risk of damage or eventual corrosion

Renews worn seals with no risk of damage or eventual corrosion Compatible with petroleum, semi-synthetic and full synthetic motor oils Reduces engine noise and oil consumption, while raising oil pressure

4
9
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)
  • Package Weight: 0.953 Kilograms
  • Product Type: Auto Oil

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

5
8.7
SCORE
Lucas Oil 10279 Engine Oil Stop Leak - 1 Gallon

Lucas Oil 10279 Engine Oil Stop Leak

1 Gallon

by Lucas Oil
What We like

Contains no harmful solvents

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Product Features

  • Reduces engine noise and oil consumption, while raising oil pressure
  • Renews worn seals with no risk of damage or eventual corrosion
  • 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 Compatible with petroleum, semi-synthetic and full synthetic motor oils

6
8.7
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

7
8.2
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

  • Conditions old seals and O-rings to stop and prevent future leaks
  • Extends life of hydraulic fluid up to 2 times
  • 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

8
7.7
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

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

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

9
7.7
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
7.7
SCORE
Lucas Oil Products LUC10018 Hydraulic Oil Booster Stop Leak, 1 gallon , 1 Pack

Lucas Oil Products LUC10018 Hydraulic Oil Booster Stop Leak

1 gallon, 1 Pack

by Lucas Oil Products
What We like

Increases equipment life

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Product Features

  • Stops leaks
  • Prevents major overhauls
  • For best performance, follow the manufacturer's recommendations in your vehicle owners manual.

Stops leaks Prevents major overhauls For best performance, follow the manufacturer's recommendations in your vehicle owners manual.

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