Engine Oil Stop Leak

Lucas Oil Products, Inc.

Engine Oil Stop Leak


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Lucas Engine Oil Stop Leak is an all new formulation of Lucas additives and very specific base stocks designed to stop seal leaks in engines!

Key Benefits

  • 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


  • #10278 - 1 Quart (Case of 12) - 25 lbs
  • #10279 - 1 Gallon (Case of 4) - 33 lbs
  • #10103 - 55 Gallon Drum (1 Drum) - 440 lbs


Product Spec Sheet Technical Data Sheet
Safety Data Sheet Safety Data Sheet

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Thomas Bautista. This product is unreal it's a bottle of of automotive magic.

I have a 2002 chevrolet blazer 4x4 with the 4.3l V6. This motor is well known to have a leaky rear main seal around 100k miles. When I bought it in late 2015 it had a leaking rear main. I was all set to spend ~$450 to have it replaced when I decided to change the oil and try Lucas engine oil stop leak not expecting much. All I can say is I am completely shocked the back of the motor is now dry there are no signs of even a tiny leak. This product is unreal it's a bottle of of automotive magic.
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