ENGINE OIL ADDITIVES

Engine Oil Stop Leak
HOME / PRODUCTS / ENGINE OIL ADDITIVES / Engine Oil Stop Leak

Engine Oil Stop Leak

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
 

Packaging

#10278 1 Quart (Case of 12) 25 lbs
#10279 1 Gallon (Case of 4) 33 lbs
 

HEAR IT FROM OUR CUSTOMERS

I would highly recommend it.

I have a 2007 Suzuki SX4, 150,000 miles. It stared leaking oil, leaving quite a puddle of oil on my new concrete, I tried Lucas Engine Oil Stop Leak, very pleased. It stopped most of the leak I'm going to put more in. I would highly recommend it. Thanks Lucas Oil.
Brian M, Nekoosa, WI

I am now a devoted Lucas fan. Thanks for saving me $$$$$!

I have a 2004 Monte Carlo Supercharged SS with 138,000kms which I just took in for an oil change. Upon completion, I was shocked to see the report: Oil pan gasket leak, Rear main seal, Both valve covers, Oil pan drain plug, Front cover gasket and Front crank seal. So while engine shopping I learned about this Lucas Oil product [Engine Oil Stop Leak]. I decided to try two bottles to try evaluate any improvements as $24 Cdn is much less than an engine. Three days later, after one quart of Lucas and miraculously my engine has healed it’s weary self and performs like new! Not a drop of leakage! I am now a devoted Lucas fan. Thanks for saving me $$$$$ ! Cheers from Canada!
Lindsay T., Canada

Leak Gone, The Stuff Is Amazing

My 2011 Mini Cooper S developed an oil leak at 80K. Took it to the shop. It was a seal on a hose coming from the engine block. In order to replace they’d have to remove the front Drive and a bunch of other components just to get to the seal (nothings easy or a quick fix on a Mini. Nothing!) $1600.00. I went home removed 1/2 quart of oil, replaced with Lucas Oil Stop Leak. Drove to work and back next day around 40 miles total. Leak gone. It’s now got 85K and no leak. The stuff is amazing. Going to put some in my F250 Powerstroke w/250K on the next oil change. The stuff is amazing.
Christopher R., Ocean Springs, MS

Thanks for making such a GREAT product! It sure saved me a lot of cash!

I am a salesman who puts a lot of miles, a mixture of highway and city stop and go, on vehicles. I currently own a 2005 Toyota Camry with 205,000 miles on it's 4 cylinder engine. About two months ago I started noticing a puff of smoke on the first start up of the day. It kept getting progressively worse, so I spoke to a mechanic who told me the valve seals were shot. Cost of repairing the seals wouldn't be that much more than replacing the engine with a used one. The engine was not leaking oil on the garage floor and it runs really well, so I started looking for an alternative. On the advice of another mechanic I picked up an additive from a well known company. It didn't come close to slowing down what had become a pretty significant cloud. I didn't want to spend $3500 on a car with that amount of miles and decided to give it one more shot, I've used a variety of Lucas products and have always been pleased with the results. Changed the oil using one of the best synthetic oils you can buy and substituted a quart of Engine Oil Stop Leak. On the bottle you state "It Works" and I am living proof that it does exactly that. On the very first start up the next morning NO SMOKE! Not only that, but the engine runs smoother and much quieter. Thanks for making such a GREAT product! It sure saved me a lot of cash!
Doug G.

Results were apparent the first day…

I have an old 8000 lb fork lift with a 3-stage mast. It was leaking like a sieve. I would keep a pan under it and dump the hydraulic oil back in through a filter every time I wanted to use it. I was expecting to pay more than $1000 to replace the seals. A guy at a local autoparts store recommended Lucas Hydraulic Oil Booster and Stop Leak. I dumped in an entire bottle. The reservoir holds more than 5 gallons. Results were apparent the first day and they have been even better since. We used to have to dump a trail of cat litter to soak up the trail of hydraulic oil. Now there is zero trail. It's great stuff!
Den

RELATED NEWS

Lucas Oil President Katie Lucas Named Indiana Business Journal C-Suite Award Honoree

December 2, 2025

Lucas Oil President Katie Lucas Named Indiana Business Journal C-Suite Award Honoree
Morgan and Katie Lucas Named Outstanding Philanthropists of the Year by the Association of Fundraising Professionals

November 13, 2025

Morgan and Katie Lucas Named Outstanding Philanthropists of the Year by the Association of Fundraising Professionals
Lucas Oil Promotes Naomi Furgiuele to Chief Product Officer

November 6, 2025

Lucas Oil Promotes Naomi Furgiuele to Chief Product Officer
solid-white-shield