Bar's Leaks Block Seal Head Gasket Fix #1111 sealed a head gasket leak between two adjacent cylinders on my daughter's 1999 Pontiac Firebird 3800. This car was missing and steaming out the tailpipe. When the spark plugs were removed from two adjacent cylinders, antifreeze ran out on the garage floor from both cylinders. To keep from pulling the head, I decided to try Bar's Leaks as a "shot in the dark fix". One 24 oz. bottle was added per instructions. The leakage into the cylinders stopped and the car ran fine without a reoccurring leak for over two years and was still running without issue when it was sold!
Verified purchase: Yes | Condition: New
It is a pretty good product no more water coming out of my tailpipe getting in my oil no more spitting and popping I said it's a good product
Verified purchase: Yes | Condition: New
Great product. Using this brand for some time with great results. It was stoping small engine head cracks leaks with it. I have a car with small head crack already with "his" life prolongued in about 100.000 kms thank to this. Not permanent seal (theres no magic) but almost like magic (it takes long time until new aplication in my case). Thanks!
Verified purchase: Yes | Condition: New
I'm happy with results. But I was going to bypass my heater core but after reading garitee I took a chance. To replace heater core is a job on my 2002 ford f150 4x4 super crew cab. I have used not other products. Thanks 67 year old Keith.
Verified purchase: Yes | Condition: New
So far, so good. Followed the directions on the product, and also watched a few youtube videos, and it looks like the cracked gasket has been sealed. If this is working in another year on my Ford F-150, I will have saved a few thousand. Try it, you can't lose anything.
Verified purchase: Yes | Condition: New
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