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30% Off Online Orders of Select Parts and Accessories. Enter Promo Code PEP30 in Cart

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30% Off Online Orders of Select Parts and Accessories
Receive 30% Off Your Online Purchase. Use promotional code PEP30 at checkout to receive discount. Not valid in combination with any other discounts or promotions. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Excludes the following categories: Tires, Wheels, Batteries, Powerstop Brake Kits, Oil, Antifreeze, Refrigerant, Truck Boxes, Vent Visors, Bug Shields and BRANDS: Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Thule, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, JVC, MSD and BBK Performance. Valid online until 2:59 am EST on 10/27/16. Online orders scheduled for in-store pick up must be completed by closing on 10/26/16 for discount to apply.

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  • Part #: 10278|
  • SKU: 9722806

Available today

Pay in Store Available

    • Treats front and rear engine seal leaks
    • Contains no harmful solvents
PayPal available for online purchases. Major credit cards accepted online and in store. Pay online, in-store or take advantage of our Pep Boys credit card. Learn more and see additional details in cart.

Lucas Oil Oil Engine Oil Stop Leak

Lucas Engine Oil Stop Leak is a unique formulation of additives and base stocks engineered to stop leaks in engines. It"s effectiveness extends to gearboxes manual transmissions gear boxes and valve stem seals.
  • Treats front and rear engine seal leaks
  • Contains no harmful solvents
  • Reduces engine noise and oil consumption while increasing oil pressure


Rated 4 out of 5 by 9 reviewers.
Rated 2 out of 5 by Not effective at all.. I put the entire contents in. Was low on oil. Leak did not stop. Was first application and car is apparently leaking from rear seal ad is typical of older Montero 3.0. But not effective nonetheless. Great smooth running though. September 18, 2016
Rated 4 out of 5 by lucas products work well worked well for my application August 25, 2016
Rated 5 out of 5 by great product this product stops/slows down leak in vehicle. August 8, 2016
Rated 4 out of 5 by work good it slow coming out but works good January 4, 2015
Rated 3 out of 5 by this product was recommended to me by a mechanic. I have an oil leak coming from the timing chain covers on my bmw and was told this product may help reduce or eliminate this leakage. So far the leakage is the same. What can I say? November 13, 2014
Rated 5 out of 5 by Lucas products work! Wonder product!! Hopefully it lasts! November 5, 2014
Rated 4 out of 5 by IT REALLY WORKS IT DID STOP THE LEAK AFTER 3 TIMES October 30, 2014
Rated 5 out of 5 by its was excellent Very good! October 1, 2014
  • 2016-10-22 T09:21:41.227-05:00
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