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4 Cyl. Engine Oil Stop-leak (Was: $109.99)
: $99.99
Today Price
6 Cyl. Engine Oil Stop-leak (Was: $119.99)
: $109.99
8 Cyl. Engine Oil Stop-leak (Was: $129.99)
: $119.99
Today Price Today Price 2-Bottle TITAN  Engine Oil Stop-Leak Add To Cart Add To Cart Semi-Truck  TITAN  Engine Oil Stop-Leak Kit Last Up To 5Yrs! Titan  Box-Truck Oil Stop-Leak
Hi-Strength
®
- Package Includes - Four (8oz.) Bottle - Free Replacement Warranty - Free Technical Service
Your Titan Oil Stop-Leak got my Isuzu NPR back on road and making deliveries like normal. Was losing oil so bad couldn’t even take it out! Thanks guys... S. Patel
4-Bottle TITAN  Engine Oil Stop-Leak Last Up To 5Yrs! Add To Cart
Stop-Leak
Transmission
- Package Includes - One (8oz.) bottle - Just pour and forget - Starts working quickly - Safe for all transmissions and fluid types including Honda and Volvo fluids…
All other brand just thicken the fluid and clog… Titan actually repairs the seals safely.
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Liquid-Ice
TITAN Amazing
- Package Includes - One (16oz.) Condensed - Just add to your coolant - Conditions all old seals - Safe to use in all engines - Contains Hyper-lubricates to lower temperatures up to 12 degrees. - Use after any system flush or once every 3 years…
16oz. condensed easy-to-use formula… Now: $22.99 Vehicle Systems World’s Only Polymer-Based Automotive Sealers & Additives… Sales & Tech: 706-400-0897 | Cust-Service: 706-400-0067  M-F 9am-5pm EST. Home Page Reviews All Items on SALE This week only, at prices shown… Starts working fast with a “Full-Seal” around 75 miles of normal driving. TITAN  Tech Notes
Click-on the questions above to see answers on right…
An educated consumer is always our best customer. Statistically 87% of our customers have taken the time and effort to learn exactly how our TITAN products differ from the other brands and understand why our TITAN formulas are so special and effective. 62% of our customers had questions which they found the answers to in one of our Tech Notes portals like this one. 38% telephoned our Tech Department for help and 77% of our Internet visitors place an order.
Sales & Tech Dept: 706-400-0897    |    Customer Service: 706-400-0067   Tech Dept. & Customer Service Available Mon-Fri 9am to 5pm EST. Need to speak with a Tech? 706-400-0897 Mon-Fri. 9am-5pm EST.
Only TITAN® offers, on-duty certified mechanics you can talk to about your vehicle’s symptoms. We’re here to help get you back on the road. So, why not give us a call today…
Titan Oil Stop-Leak is safe and very easy to use. No need to change your oil. Each bottle is just 8oz., so you can’t overfill your system when adding. Simply add to your existing engine oil and leave-in until your next scheduled oil change. Reaches full -seal in less than 150 miles of driving…
Additional TITAN Products
- Smoke Stopper, Engine Hush, Liquid-Ice Titan Super-Coolant, Power Steering Sealer Fuel Injector Cleaner, Radiator-Block Sealer
Transmission Products
- Transmission Stop-Leak, Shift-Restore ,Shutter-Stop, Transmission Conditioner
Head Gasket Sealers
- Car/SUV/Truck, Turbo Diesel Truck, Forklift Semi-Truck, Box Truck, Tractor, Diesel Car
Electric Vehicle Products
- EV Super Battery Coolant, EV Coolant Flush Reduction Gear Stop-Leak, EV Transmission Sealer, AWD Differential Stop-Leak, etc.
We do allot more than just make the world’s best Engine Oil Stop-Leaks! Check-out our other great products…
TITAN  Smart products for smart people
Other stop leak brands thicken the oil adding more stress to the seals…
Brands like: Lucas and Bars are thicker than 80-weight gear oil. This increases the engine compression adding more stress to engine oil seals & gaskets.
*Actual photo of “Lucas Oil Stop Leak” sealer’s thickness shown here.
Titan Oil Stop-Leak is Different…
Our Oil Stop-Leak’s viscosity is the same as 5W-30 weight motor oil. That’s a full 110% thiner viscosity than the other brands! So you don’t have to worry about clogging the ports, galleys or oil coolers, even in turbo-diesel engines.
Titan’s Oil Stop-Leak repairs the seals, not the engine oil. Most leaks result from the seal’s loss of silicone content as the seal ages. This simply causes the seal to shrink and allow  oil to bypass the seals and leak engine oil outside the engine block.  Titan Oil Stop-Leak has been formulated to offer a high “silicone-content” to the seals.  The worn/damaged seals simply absorb the new “Silicone-Polymer” they’ve lost over  the years and expand back to the original size. Stopping the leak the right way…
Thickening-formulas like these fix nothing. They simply try to slow the problem down..
Titan  Universal Oil Stop-Leak
Hi-Strength
®
Great for: Cars, SUV’s, Light-Duty Trucks, Small to Medium Equipment and more… ( )
- Package Includes - One (8oz.) Bottle - Free Replacement Warranty - Free Technical Service
4 Cyl. Engine Oil Stop-leak (Was: $74.99)
: $69.99
Today Price
6 Cyl. Engine Oil Stop-leak (Was: $84.99)
: $79.99
8 Cyl. Engine Oil Stop-leak (Was: $94.99)
: $89.99
Today Price Today Price
Your Titan Oil Stop-Leak is my #1 choice at my repair shop. Titan sealer is more than reliable enough for me to use here and recommend to my customers and friends... S.Miller
1-Bottle TITAN  Engine Oil Stop-Leak TM Add To Cart Add To Cart Titan  Universal Oil Stop-Leak
Hi-Strength
-Pack Special Offer…
®
Great for larger oil capacities: Northstar’s,  BMW, Mercedes, Turbo-diesel trucks, etc. ( )
Wanted to let you know, I had a real bad leak in my beautiful CTS Cadillac, so I tried your product and it worked… D.W
Package Includes - Two (8oz.) Bottles -  Free Replacement Warranty - Free Technical Service - Last Up To 5Yrs!
Specially formulated for: All Semi-Truck turbo-diesel engines. Oil Cooler Safe…
(
)
- Package Includes - Six (8oz.) Bottles - Free Replacement Warranty - No need to change oil - Free Technical Service - HD Kit treats upto 22 Gal.
My Freightliner Cascadia was losing about a gallon of oil every 1000 miles from the rear main. Tear-down cost would have been 8 grand! You guys got the leak stopped for less than 250 bucks. Thanks again... R.T.
Six, 8oz. Bottles Semi-Truck Kit…
Titan  Semi-Truck Oil Stop-Leak
Hi-Strength
-Bottle Heavy Duty Kit
®
6 Last Up To 5Yrs!
Semi-Truck 6-Bottle HD Kit (Was: $299.99)
: $259.99
Today Price
(6)-Bottle Semi-Truck HD Kit for larger oil system capacities up to 22 gallons. This kit is strong enough to stop medium to severe leaks in all big-rigs and service vehicles. Non-thickening, non-hardening formula. Will not clog oil coolers, filters or oil ports. Average repair-life is 400,000 to 650,000 miles. Will not interfere with rebuilds later.
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Specially formulated for: All Box-Trucks Gas & Diesel engines. Oil Cooler Safe…
(
)
Box-Truck 4-Bottle HD Kit (Was: $259.99)
: $209.99
Today Price
(4)-Bottle Stop-Leak Box-Truck HD Kit for larger oil system capacities up to 6 gallons. Non-thickening, non-hardening formula. Will not clog oil coolers, filters or oil ports. Average repair-life is 250,000 to 550,000 miles. Will not interfere with rebuilds later.
Add To Cart
(This formula is NOT for Semi-Trucks)
Click to add Titan item to cart
Stop-Leak
Front/Rear Differential
- Package Includes - One (8oz.) bottle - Just pour and forget - Starts working quickly - Safe for all differentials and fluid types including Honda and Volvo fluids…
All other brand just thicken the fluid and clog… Titan actually repairs the seals safely. Now: $49.99 Starts working fast with a “Full-Seal” around 75 miles of normal driving.
Click to add Titan item to cart
Stop-Leak
Power Steering
- Package Includes - One (8oz.) bottle - Just pour and forget - Starts working quickly - Safe for all systems and fluid types including Honda and Volvo fluids…
All other brand just thicken the fluid and clog… Titan actually repairs the seals safely. Now: $39.99 Starts working fast with a “Full-Seal” around 75 miles of normal driving.
LATEST TITAN REVIEWS AS OF:
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BLOGS INTERESTS NOTES
I tried your sealer in my 2005 Cadillac with the Northstar 6 weeks ago. I love this car. It's in perfect condition except for a oil leak from the pan. I used your stop leak and after about a week it did the truick. No more leaks. I'm very happy with your product.
Jason T. (Verified Purchase)
372 People Found This Helpful...

I would just like to thank you for making a great product. I own a 1999 Plymouth Grand Voyager that has been over heating for the last month or so and finally today was the breaking point when the temperature gauge would not return to normal. Just like many other people in this situation we do not have the money to replace a blown head gasket. After doing some searching and researching I came across your product on the internets. Needless to say I was a little skeptical about your product however, that has now changed. I followed the instructions on the bottle of and also replaced the thermostat. I allowed the van to idle for 15 mins or more and I did not see a change. So I decided to take it for a drive and instantly I could tell the difference; then finally after fighting with the heat for weeks now it finally worked. I am going to drive it once again tomorrow to make sure everything is fine before I let my wife drive it but, I am very thankful once again.
johnny3752 (Verified Purchase)
237 People Found This Helpful...

I installed your oil stop leak in my 2014 bmw 530 last month. It was leaking from pretty much every where. Your product wasn't cheap but it did the job and stopped the oil leaks. My mechanic wanted around 3,300 dollars to do it the old fashioned way. I'll be reccomending your stuff to everyone.
Juan M. (Verified Purchase)
672 People Found This Helpful...

My Subaru Outback was leaking oil between the heads and block. I tried several of the other store brands which didn't help. The Lucas I tried actually made the leak worse. So finally I bought your Titan oil stop leak and to my surprise it actually stopped the leak. I wanted to wait a few months before I left a review to make sure it really stopped the leak long term and it has been close to 6 months now and still no leak. I think your product is fantastic.
Leah M. (Verified Purchase)
547 People Found This Helpful...

My 2003 Land Rover smelled like antifreeze and a dealer I took it to said either head gasket replacement around 3000.00 or he could try your Titan Sealer. He did and that was 8 months ago. I am very satisfied and I am going to be ordering your oil stop leak soon. Thanks a lot!
Terry J. (Verified Purchase)
142 People Found This Helpful...

I bought your Head Gasket Fix my 1997 Cadillac Deville with a 4.6L Northstar engine with 111,000+ miles on it. To make a long story short, it worked. The engine was stuttering or missing 15 seconds on a cold start up or 15 seconds after a warmed up stoppage of the engine and restart. I suspected that antifreeze/coolant was getting into the #1 cylinder due to a defect in the cylinder head gasket. The cylinder head gasket is very difficult to replace on this engine as the transmission has to be removed first. Thanks for such great product.
mickeycool2347 (Verified Purchase)
239 People Found This Helpful...

I experienced a major intake gasket failure on my Chevy 350 causing the entire contents of the cooling system to empty into the oil pan during a short 5 mile drive to work. The failure was so extensive that the slurry found its way into the cylinders and air cleaner housing as well. Not looking forward to spending a Saturday tearing down the top half of my motor, I instead decided to try your seler. I visited your website to become familiar with your entire product line and choose the chevy 8 cylinder kit for this situation. To be honest, I didn't have high expectations for success due to the seemingly extreme condition I was using the product for. I am very happy to report that a single treatment with the product has sealed the failed areas. The operating temperature is normal, after 3 oil changes the oil is staying clean, and I have not lost any coolant. My advice to anybody considering using your product, is, don't let the $130 price scare you into using a lesser option. Although every situation is unique, this product worked for this situation better than I expected.
Carl E. (Verified Purchase)
382 People Found This Helpful...

Ok I'm not a big reviewer guy but I really needed to let more people know about your stuff. I had tried lucas and bars on my 2016 mini cooper for an oil leak at the rear main and niether of them worked. I put just one bottle of your titan oil stop leak in and the leak actually stopped in 4 days. Very happy and will be letting everyone know about your stop leaks
Tim R. (Verified Purchase)
276 People Found This Helpful...

Thank you for saving my automotive life. Last week I had both of my vehicles in need of your products. My 1991 Toyota Previa van lost its head gasket, antifreeze in the oil and smoking like crazy. I used your head gasket sealer and 60 minutes later I noticed a huge difference. It has been a week and my oil looks like oil and my antifreeze level is perfect and she runs like a champ. My second car is a 2005 Chrysler van which sprung a bad radiator leak. I used your radiator and block sealer and it has no more leak. Thank’s! You saved me from many thousands in repairs or a new car payment.
Mike W. (Verified Purchase)
482 People Found This Helpful...

I just wanted to say that I am very impressed with your head gasket sealer. I had coolant leaking out of my head gasket and poured your sealer in my radiator and went through the repair processr and the leaked stopped within about 60 minutes after the thermostat opened. I was a bit leary of using a stop leak for fear of clogging up my heater or radiator but so far I have no problem with that. Your sealer appears to have saved me over a grand in repair cost.”
Gary F. (Verified Purchase)
187 People Found This Helpful...

Thank you for taking the time to talk to me about the head gasket leak in my '2005 chevy v6 and for sending the email on how to eliminate any air bubbles in my cooling system. I installed the head gasket sealer into the radiator per instructions and finished the repair about 2 hours later. The car no longer puffs steam out of the tail pipe, the “low coolant” light does not come on any more and there is no longer a mis-fire. Thanks to your stuff, my van runs great and you saved my ride and saved me a huge repair bill for new head gaskets.
hellobutter2002 (Verified Purchase)
92 People Found This Helpful...

Just wanted to put in my testimonial after reading countless others on yourproducts. I own a 2002 caddy with the northstar engine, and after having to put AT LEAST a third of a bottle of coolant in EVERY day, it was diagnosed as having either a head gasket leak or a head gasket that was completely blown. 20 ppm of hydrocarbons in the vapor from your coolant tank and you have a bad head gasket, mine read 191! After putting your product in, I haven't had to top off my coolant one single time!
John H. (Verified Purchase)
312 People Found This Helpful...

I just want to thank you for making such a great product. It helped me fix my blown head gasket on my BMW. My car is no more using a lot of water, the engine is no more skipping and the car is running great now Thanks
Larry H. (Verified Purchase)
107 People Found This Helpful...

I was having an antifreeze leak on my honda civic with 158K miles on it, and it was determined that the problem was the head gasket. My repair shop said that if they replaced the head gasket, the engine would burn oil, so they wanted to replace the engine for $3000. I put your honda repair kit in and the car has not leaked any antifreeze in more than 5,000 miles. I'm very pleased, to say the least!
Stacy M. (Verified Purchase)
37 People Found This Helpful...

Wanted to update you. I am at 2,600 miles and going strong. No sign of a leak. I am very pleased to say the least. I have recommended your product to at least 6 or 7 people who are going to try it.
Lisa G. (Verified Purchase)
73 People Found This Helpful...

I am writing to tell you of my good experience with your titan head sealer. I am pretty skeptical when it comes to additives but I have an 2006 subaru with the 4 cylinder and over a year ago the head gasket started leaking water into cylinder #3, drip, sizzle, drip, sizzle, and blew out water when the spark plug was removed. I was quoted a figure of $1800 to fix it. It has 157,000 miles on it so when I saw your sealer was actually made for my engine I was excited. Well I was ready to sell this thing to a junkyard until I put your stuff in it and it worked! I am not in the habit of endorsing products but this stuff really works! I am a very satisfied customer and highly recommend this product
Frank H. (Verified Purchase)
517 People Found This Helpful...

I tried your sealer in my 99 Cadillac (Northstar) 3 days ago. The car is in perfect shape, inside and out except for that dam head gasket. After finishing the repair process it been doing fine and running like a charm. This product saved this car from the junkyard. Thanks!
atlan4472. (Verified Purchase)
2 People Found This Helpful...

I got over $2000 estimate when I asked a local car service for checking the problem with my car that turned out to be leaking in the head gasket. I was about to donate my car or either sell it at any price. But, found your sealer online and gave it a try. It really works!!! Its been 2 months now with no problems.
Linda S. (Verified Purchase)
362 People Found This Helpful...

COPYRIGHT TITAN SEALERS INC. USA - LAST UPDATE: 5 days ago
The best *Money Back Guarantee in the Auto Sealer Industry & Free Replacement Warranty if you need more of our Titan sealer to achieve a full and complete auto repair… If your vehicle falls in the low 2% that may need another treatment to reach a “Full-Repair” we’ll send out a *2nd. FREE application to get you fully repaired… Titan Sealer repairs last up to a full 5 years!
Only TITAN offers
you Warranties…
2
See “Terms & Shipping” for more information on warranty.*
TITAN Engine Oil Stop-Leak Products
All Titan Engine Oil Stop-Leak products are guaranteed not to thicken your engine oil or increase compression. Our Oil Stop-Leaks are completely safe to use in all vehicles and all engine oils including; synthetic. conventional and even diesel rotella oils. With Titan there’s no problems. just results…
TECH TIP #1 TECH TIP #2 TECH TIP #3
Great info. you can use to help you choose which product is best for your needs…
You can trust TITAN Engine Oil Stop-Leak to get you fully-sealed and back on the road, quickly and safely. We’ve help over half a million people since 1997 and look forward to helping you as well.
98%
SUCCESS RATE
(first-time application)
2%
REQUIRE ADDITIONAL TREATMENT
(To achieve Full-Seal)
100%
NON-THICKENING LIQUID SILICONE FORMULA
(Can’t clog or harden)
100%
COMPATIBILITY
(With: Synthetic, Conventional, Rotella, Hydraulic Fluid)
Graph Results By: AutoWeekly Magazine 2019 Lucas, Bars, TITAN, Blu Devil Customer Survey
How does TITAN Engine Oil Stop-Leak Stack-up?
All TITAN Oil Stop-Leaks are compatible with all engine oils and synthetics. For use in Gas & Hybrids
All TITAN Oil Stop-Leaks are silicate-free and can’t cure, harden or clog oil coolers, galleys or filters
98% of TITAN customers get a complete seal the first-time they use our stop-leak products
Only 2% of TITAN customers require a 2nd.*free application to achieve a full-seal and lasting repair
Click to add Titan item to cart
Now: $49.99 Serving  since 1997
We don’t just make the best head gasket sealers, we have over 170 additional automotive products…
ADDITIONAL TITAN PRODUCTS email-service@titansealers.com TO USA THIS WEEKS SPECIAL: REDUCED SHIPPING! TO USA THIS WEEKS SPECIAL: REDUCED SHIPPING!
*Non USA Shipping/Handling will be charged
*Non USA Shipping/Handling will be charged
TO USA THIS WEEKS SPECIAL: REDUCED SHIPPING! TO USA THIS WEEKS SPECIAL: REDUCED SHIPPING!
*Non USA Shipping/Handling will be charged
*Non USA Shipping/Handling will be charged
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Click for Reviews
Yahoo! Reviews I used Titan on my 2014 BMW and it really  worked, thanks…
Steve. R (Maine)