Head Gasket Fix (24 oz.)
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Bars Leak Head Gasket Fix (24 oz.)

Part No. 1111 Warranty  
Bar's Leaks Head Gasket Fix combines antifreeze-compatible sodium silicate sealing liquid and various-size gasket-sealing particles to stop head gasket coolant leaks without draining the cooling system. Product Features: For use on water-cooled gasoline and diesel engines, Heavy-duty formula works on aluminum and cast-iron heads and blocks; also repairs head gaskets, cylinder heads, intake gaskets, cracked blocks and freeze plugs, Compatible with virtually all types of antifreeze, including conventional silicate-based green and blue and extended-life red/orange and yellow (OAT/HOAT) coolant, Gasket-sealing particles penetrate gaps and cracks and harden to permanently stop leaks without draining the cooling system, 1 bottle treats up to a4-gallon cooling capacity

Product Features:
  • Stops Block Leaks
  • Seals Cracked Cylinder Heads & Block
  • Repairs Blown Head Gaskets
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Antifreeze Type Compatibility:Compatiable with all antifreeze
Boiling Point at 50/50 Mixture:219 deg F
Contains Corrosion Inhibitors:No
Contains Ethylene Glycol:No
Contains Lubricant:Yes
Lubricant Type:No
Manufacturer Warranty Compatibility:Yes
Non-Toxic:Yes
Radiator Material Compatibility:All
Recommended Change Interval:12000 mi

REVIEW SNAPSHOT®

by PowerReviews
Bars LeakHead Gasket Fix (24 oz.)
 
3.7

(based on 37 reviews)

Ratings Distribution

  • 5 Stars

     

    (22)

  • 4 Stars

     

    (4)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (10)

70%

of respondents would recommend this to a friend.

Pros

  • Easy to use (25)
  • Reliable (8)
  • Can withstand use (5)

Cons

    Best Uses

    • Home garage (18)
    • Roadside repairs (8)
    • Automotive repair shop (5)
      • Reviewer Profile:
      • Casual driver (5), Auto enthusiast (4), Mechanic (3)
      • Reviewer Profile:
      • Auto enthusiast (9), Mechanic (6), Casual driver (5), Truck enthusiast (4)

    Most Liked Positive Review

     

    SAVED ME $$$

    I had nothing to loose as i got a $800 quote to fix.I had a internal coolant leak, bubbles in the overflow, smelling coolant , and idle was all over the place. Mechanic...Read complete review

    I had nothing to loose as i got a $800 quote to fix.I had a internal coolant leak, bubbles in the overflow, smelling coolant , and idle was all over the place. Mechanic told me HEADGASKET..1996 Honda. You must follow the directions, I added 1/2 bottle to my radiator slowly and shook up bottle between pours. Started car and let it idle for about 20 min.Let sit for about a hour. Popped radiator cap off and filled with coolant. Car started kinda rough, but it immediatly cleared up and runs better than ever. I put 638 miles on it so far no problems. Follow the directions and this should take care of your problem.

    VS

    Most Liked Negative Review

     

    Only made things worse

    Used it exactly as instructed on my 98 Subaru Legacy. It did nothing to correct the overheating problem, but it did noticeably clog the heater core. For the money, it seemed like a...Read complete review

    Used it exactly as instructed on my 98 Subaru Legacy. It did nothing to correct the overheating problem, but it did noticeably clog the heater core. For the money, it seemed like a reasonable thing to try to get a month or two of normal driving before I come up with the money for repair. The first thing I noticed when I got into the car was that heater was blowing cold air. The car overheated some 5 minutes into my trip. As I was pulling over to let it cool, the upper radiator hose blew off. I had some coolant in the car, so I refilled and tightened the rad hose. Let the car cool for a bit, then turned around to go back, and the upper rad hose blew off again. The radiator cap was new from the dealer, so couldn't have been that. Definitely would NOT recommend this product, as my car was ok to drive short distances before I used it. Now I can't even drive it to the repair shop.

    Reviewed by 37 customers

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    5.0

    Great product without a cracked head

    By cwbysatx

    from San Antonio, Texas

    Ask me a question

    Level 2

    Pros

    • Can Withstand Use
    • Compact Design
    • Easy To Use
    • Reliable

    Cons

      Best Uses

      • Automotive Repair Shop
      • Home Garage
      • Roadside Repairs

      Comments about Bars Leak Head Gasket Fix (24 oz.):

      Use properly and it will cure a leaking head gasket - not a cracked head or block. If it seals - it stays sealed under heavy towing with a 454 HD Truck for another 60k miles until sold it still running perfect

      Comment on this review(earn points)

       
      5.0

      Simply works, impressive

      Pros

      • Can Withstand Use
      • Easy To Use
      • Reliable

      Cons

        Best Uses

        • Head Gasket Leak

        Comments about Bars Leak Head Gasket Fix (24 oz.):

        I bought this for my Sebring after it overheated and the head gasket was allowing compression gas into the coolant system. I put it in with car having 133K miles and at 141K it is still working great. Much cheaper and probably better(since no break down of engine) for your wallet. We have taken the car on long trips with no problems. Give it a try! I carry antifreeze and a can of this with me on trips just in case.

        Comment on this review(earn points)

         
        5.0

        So far so good

        By MJ

        from Manchester, PA

        About Me Mechanic

        Level 1

        Pros

          Cons

            Best Uses

              Comments about Bars Leak Head Gasket Fix (24 oz.):

              This is my first mechanic-in-a-bottle experience. My ex wife's Olds Silhouette had a head gasket leak. I'd normally just do it right, but time and money is tight for both of us right now.

              I flushed the cooling system VERY thoroughly, and added the product with fresh 50/50 antifreeze mix. The instructions said to idle for 15 minutes and let cool completely. I repeated that (idle / cool) three times, wanting to start it off gently.

              Three days and it's holding just fine. No overheating, no excessive pressure, no antifreeze blowing out and filling the overflow bottle, and the engine light (misfire code) went out. Keeping out fingers crossed. Wouldn't believe it if I hadn't seen it myself.

              Comment on this review(earn points)

              (1 of 1 customers found this review helpful)

               
              5.0

              Bars head gasket fix is quick and easy.

              By Shawman

              from Union City, Pa

              About Me Mechanic

              Verified Buyer
              Level 1

              Pros

              • No Pre-flush Required

              Cons

              • Metalic Like Film Residue

              Best Uses

              • Home And Roadside Repairs

              Comments about Bars Leak Head Gasket Fix (24 oz.):

              Product is easy to use and works in a short period of time. If you have a radiator or internal/ external block leak. it solves the problem in a snap.

              Comment on this review(earn points)

               
              5.0

              its worked for me !!

              By dodge guy

              from Buffalo, NY

              Comments about Bars Leak Head Gasket Fix (24 oz.):

              2001 Dakota 4.7L 200K.. #8 P0308 code. looked at the head gasket through the wheel well and saw a oil spot and Greenish film on the oil cap. and I have had to add both oil and coolant monthly but not excessive. bought the bar leak to try. and step by step it works, code went away and truck has restored power.. cheaper than a head gasket replacement and/or a new truck.I hope it holds for another yr or 2..

              Comment on this review(earn points)

              (0 of 1 customers found this review helpful)

               
              1.0

              NOT GOOD!!

              By A. T.

              from Lakeland, FL

              Level 1

              Pros

                Cons

                • Flimsy

                Best Uses

                • Home Garage
                • Upkeep

                Comments about Bars Leak Head Gasket Fix (24 oz.):

                Used this product as well as some of the lower end products form Bars to help a leak in my 2001 Seville STS. did not work at all. It was like pouring my money down the drain! Don't compromise with your vehicle, get it done the correct way. Thank goodness for the money back guarantee.

                Comment on this review(earn points)

                 
                2.0

                Did not work

                By Willow

                from Churubusco, IN

                About Me Truck Enthusiast

                Level 2

                Pros

                • Easy To Use

                Cons

                • Not Effective

                Best Uses

                  Comments about Bars Leak Head Gasket Fix (24 oz.):

                  I have a head gasket leak in my 02 Silverado....leaks gasses into the coolant only. Took months to finally find out what was causing the overheating issue- only when hot outside when driving for over 20 mins (can idle all day long and stay cool). I was quoted $1500 to repair, so thought an additive was worth a shot. Mechanic recommended Bar's copper, but I saw this was specific for head gaskets so spent the extra money. I followed instructions to the T and then drove for 100 mi...had to turn heat back on 20 mins in before I even got out of town...and it was 90 out. Going to try flushing system and using the copper that I was told to use in first place, then changing out radiator as that has tiny seepage and air not flowing through it. Will update under that one tonight.

                  Comment on this review(earn points)

                  (3 of 5 customers found this review helpful)

                   
                  5.0

                  works so far

                  By trini

                  from n.laud,florida

                  About Me Auto Enthusiast

                  Ask me a question

                  3 or more reviews submitted

                  Pros

                  • Easy To Use

                  Cons

                    Best Uses

                      Comments about Bars Leak Head Gasket Fix (24 oz.):

                      suspect blown head gasket losing coolant thru overflow bottle,just follow instructions on bottle flushed radiator installed a little over half bottle plus add coolant and after a couple days no coolant loss so far so good.

                      Comment on this review(earn points)

                      (2 of 6 customers found this review helpful)

                       
                      1.0

                      Didn't work

                      By Mike T

                      from Charlottesville, VA

                      About Me Casual Driver

                      Verified Buyer
                      Level 1

                      Pros

                      • Easy To Use

                      Cons

                        Best Uses

                        • Home Garage

                        Comments about Bars Leak Head Gasket Fix (24 oz.):

                        I followed the instructions exactly. The gasket fix did not seal the gasket . I'm still using a gallon of coolant for every 30 miles driven.

                        Comment on this review(earn points)

                        (3 of 5 customers found this review helpful)

                         
                        1.0

                        MEH

                        By Wills

                        from Greenbay, WI

                        Verified Buyer
                        Level 2

                        Comments about Bars Leak Head Gasket Fix (24 oz.):

                        DID NOT WORK AT ALL

                        Comment on this review(earn points)

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                        Do you have questions about this product?(earn points for answers!)

                         

                        Ask a question, get answers from real customers and in-house experts. Or contact Customer Care by email or call 1-877-238-2623.

                        65 Questions | 70 Answers
                        Displaying questions 1-10Previous | Next »
                        • Q:

                          i have a 1990 Toyota ext cab 5 speed with a v6 how many cans would i need to make sure it will fix it
                          Asked on 9/11/2014 by troy from oilcity pa

                          2 answers

                          • CUSTOMER CARE

                            A:

                            Hi Troy, glad to assist you! You would use a whole bottle as you have a 10.1 quart system.

                            Answered on 9/12/2014 by Solomon
                          • CUSTOMER CARE

                            A:

                            I'm glad to assist, Troy! Your 1990 Toyota Pickup extended cab with the 3.0L V6 and manual transmission uses 11.1 quarts of coolant. The Bars Leak Head Gasket Fix (24 oz. Part No. 1111) will treat up to 4 gallons (16 quarts) of coolant. You should only need 1 bottle for your vehicle.

                            Answered on 9/12/2014 by Heath, ASE Parts Specialist from AAP
                        • Q:

                          I have a 1997 Ford Expedition with 229k miles and has a blown head gasket and it is muddy looking in the coolant. Can you use this product to fix the problem.
                          Asked on 4/30/2014 by ford

                          1 answer

                          • CUSTOMER CARE

                            A:

                            Hi Ford, glad to assist you! This formulation contains a combination of antifreeze compatible sodium silicate sealing liquid and various size gasket sealing particles which penetrate gaps & cracks and harden to permanently stop leaks. This seals because of the extreme heat inside the combustion chamber (5000°F) that works as a catalyst to permanently harden the material to make it stronger than the actual head gasket itself. Your vehicle is a good candidate for this product if it can idle for 20 minutes without overheating or having to add coolant. Use on ALL water cooled gasoline and diesel engines. Heavy duty formula works on aluminum and cast iron heads & blocks, along with sealing all other engine cooling system leaks better than a traditional stop leak. This includes repairing head gaskets, cylinder heads, intake gaskets, cracked blocks and freeze plugs. Use with ALL types of 50-50 mix antifreeze including conventional yellow, orange, pink, red, blue and green silicate based & non-silicate based (OAT/HOAT) coolant, and/or water. Solution: Stops Block Leaks. Seals Cracked Cylinder Heads. Repairs Blown Head Gaskets.

                            Answered on 5/2/2014 by Steve from AAP
                        • Q:

                          I just bought a 2001 pontiac montana. the heat stops working when it over heats. when the heat comes on the engine starts to cool itself. changed the water pump and thermostat.no leaks. having trouble with stabilizing pressure and bubbles in the radiator. mechanic said "head gasket". could trying BL head gasket fix be a better idea then just giving up?
                          Asked on 3/6/2014 by diana from United States

                          1 answer

                          • CUSTOMER CARE

                            A:

                            Hi Diana, tricky question! The Bars Leak Head Gasket Fix may help but I would always recommend fixing the problem by finding out exactly the cause of the issue with the head gasket and then replacing the necessary parts.

                            Answered on 3/6/2014 by Vincent from AAP
                        • Q:

                          WILL THIS WORK WITH A 95 CHEVY CORSICA ENGINE BLOCK LEAK
                          Asked on 12/28/2013 by TIM from BALTIMORE, MARYLAND

                          1 answer

                          • CUSTOMER CARE

                            A:

                            Hi Tim! It's a good question. This product will stop the block leak in your vehicle.

                            Answered on 12/30/2013 by Max from AAP
                        • Q:

                          have a saturn sl 4 cilender car planning on buying your head gasket fix car runs but it over heats will this work
                          Asked on 11/7/2013 by chief1cutter from United States

                          1 answer

                          • CUSTOMER CARE

                            A:

                            Hi Chief1cutter, the Bars Leak Head Gasket Fix (Part No. 1111) formulation contains a combination of antifreeze compatible sodium silicate sealing liquid and various size gasket sealing particles which penetrate gaps & cracks and harden to permanently stop leaks. This seals because of the extreme heat inside the combustion chamber (5000°F) that works as a catalyst to permanently harden the material to make it stronger than the actual head gasket itself. Your vehicle is a good candidate for this product if it can idle for 20 minutes without overheating or having to add coolant. Use on ALL water cooled gasoline and diesel engines. Heavy duty formula works on aluminum and cast iron heads & blocks, along with sealing all other engine cooling system leaks better than a traditional stop leak. This includes repairing head gaskets, cylinder heads, intake gaskets, cracked blocks and freeze plugs. Use with ALL types of 50-50 mix antifreeze including conventional yellow, orange, pink, red, blue and green silicate based & non-silicate based (OAT/HOAT) coolant, and/or water.

                            Answered on 11/8/2013 by Steve from AAP
                        • Q:

                          HI I have a 2003 Chevrolet Malibu. I see some sweating on the side of the head gasket plus I smell a sweet odor which is coolant.This car has a surge tank and the rad has no cap. Can I pour this directly in the surge tank. Can I just drive it on the Highway for an hour for it to work. Thanks.
                          Asked on 9/17/2013 by Vito from Canada

                          1 answer

                          • CUSTOMER CARE

                            A:

                            The instructions to use Bars Leak Head Gasket Fix (Part No. 1111) are as follows: 1. Allow engine to cool. Make sure engine is cool enough so radiator cap can be safely removed. 2. Shake well. Pour HEAD GASKET FIX directly into radiator. If using in a small cooling system under 1.5 gallon capacity, such as 4 cylinders with no air conditioning, install ½ bottle. Tip: If direct access to radiator is not available and if overflow tank is pressurized, you can install in tank. 3. Fill radiator and overflow tank to proper level and reinstall radiator cap. Start engine. 4. Turn heater on hot and fan on high. 5. Idle engine for 15 minutes. 6. Allow engine to cool. 7. Top off radiator and leave Bar’s Leaks HEAD GASKET FIX in cooling system for continued protection. Drive vehicle as normal. This Bars Leak Head Gasket Fix may help, but I would always recommend fixing the problem by finding out exactly the cause of leak and then replacing the necessary parts. For any further assistance, you may also call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

                            Answered on 9/18/2013 by Vincent from AAP
                        • Q:

                          I used the bars leak head gasket sealer, dumped it in the radiator upper hose and tryed to start car but baterry needed to be charged over night. Will the bars leak harden in the radiator or will it still be safe to start car in morning, and will it still work?
                          Asked on 8/11/2013 by James from Huntingtown Maryland

                          1 answer

                          • CUSTOMER CARE

                            A:

                            The Bars Leak Head Gasket Fix (Part No. 1111) will not harden the radiator and you can start the engine in the morning. For any further assistance, please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

                            Answered on 8/12/2013 by Steve from AAP
                        • Q:

                          I bought a bottle and over the winter it froze in my garage. Just wondering if will change the effectiveness of the product?
                          Asked on 5/21/2013 by Kev from ND

                          1 answer

                          • CUSTOMER CARE

                            A:

                            This Bars Leak Head Gasket Fix - Part No. 1111 formulation contains a combination of antifreeze compatible sodium silicate sealing liquid and various size gasket sealing particles which penetrate gaps & cracks and harden to permanently stop leaks. This seals because of the extreme heat inside the combustion chamber (5000°F) that works as a catalyst to permanently harden the material to make it stronger than the actual head gasket itself. Please ensure good ventilation/exhaustion at the workplace, avoid storage near extreme heat, ignition sources or open flame and keep container tightly sealed. Otherwise, it may be changes the effectiveness of the product. For any further assistance, please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

                            Answered on 5/22/2013 by Morgan from AAP
                        • Q:

                          I have a 2000 Cadillac Deville. Where do I pour in the head gasket fix? I was told that you have to take the out thermostat and put it in where that goes. Then someone else said it goes in the radiator. Please help! :)
                          Asked on 3/17/2013 by Jenn from Gloversville, NY

                          1 answer

                          • CUSTOMER CARE

                            A:

                            Instructions to use Bars Leak Head Gasket Fix (Part No. 1111): 1. Allow engine to cool. Make sure engine is cool enough so radiator cap can be safely removed. 2. Shake well. Pour HEAD GASKET FIX directly into radiator. If using in a small cooling system under 1.5 gallon capacity, such as 4 cylinders with no air conditioning, install ½ bottle. Tip: If direct access to radiator is not available and if overflow tank is pressurized, you can install in tank. 3. Fill radiator and overflow tank to proper level and reinstall radiator cap. Start engine. 4. Turn heater on hot and fan on high. 5. Idle engine for 15 minutes. 6. Allow engine to cool. 7. Top off radiator and leave Bar’s Leaks HEAD GASKET FIX in cooling system for continued protection. Drive vehicle as normal. For any further assistance, please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

                            Answered on 3/18/2013 by Steve from AAP
                        • Q:

                          I have a 90s dodge ram diesel truck is it safe to use this product in a cumins Diesel engine?
                          Asked on 2/28/2013 by Tanner

                          1 answer

                          • CUSTOMER CARE

                            A:

                            Yes, this Bars Leak Head Gasket Fix - part# 1111 is safe to use in a 90s Dodge Ram diesel truck. For any further assistance, please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

                            Answered on 3/1/2013 by Vincent from AAP
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