

🚗 Keep your engine cool and leak-free — because breakdowns are so last season!
Bar's Leaks High Mileage Cooling System Repair is a scientifically formulated additive that stops coolant leaks instantly while reducing engine overheating. Compatible with all antifreeze types and designed with premium carbon fiber technology, it extends the life of your cooling system and prevents costly repairs, making it the go-to solution for high mileage and everyday vehicles alike.




| ASIN | B00753MZWG |
| Best Sellers Rank | #72,605 in Automotive ( See Top 100 in Automotive ) #19 in Cooling System Additives |
| Brand | Bar's Leaks |
| Customer Reviews | 4.3 4.3 out of 5 stars (372) |
| Date First Available | February 3, 2012 |
| Item Weight | 1 pounds |
| Item model number | 1150 |
| Manufacturer | Bar's Leaks |
| Manufacturer Part Number | 1150 |
| Model | 1150 |
| Product Dimensions | 1.8 x 3.6 x 8.4 inches |
S**O
Works Great
Works! I used it months ago to stop a radiator leak on my 2007 Saturn Vue, I pour it in the engine coolant surge tank, it fixed the problem.
S**E
Miracle savior
Drove 2500 miles now after what appeared to be a weeping waterpump. Was leaking from lower side of pump about 3 quarts came out when I stopped to get gas. Put this in with 2 bottles drinking water and drove 500 miles home. 100 degrees out AC on all the way. Coolant still full. Have driven 2000 more miles since and hasnt leaked a drop. Waterpump seems solid and doesnt wiggle so maybe just dried seals from sitting for months during covid. Will keep an eye on it but this is some miracle stuff. Waterpump and belt and coolant sitting in garage so now just waiting for it to stop working. I may be waiting a long time. We will see Update May 2022. Waterpump finally went out in driveway but let me take 3 x 2000 mile trips with full AC on and 100 degree temps outside Gave me lots of time to buy parts and tools and fix it in my garage when it blew. Excellent product
U**N
Did the trick
I know I have a hole in my radiator, my car is old, replacing it isn’t worth it. I was adding 4 cups of coolant and 4 cups of water every six weeks. After a month this is holding, in that time my coolant is still within the cold fill range. The first I noticed is I haven’t had any rough start ups since, it may have plugged some head gasket leaks when the block is cold.
C**E
Worked
The first bottle did not work, so I poured in a second one, and it worked and stopped the leak. Not sure if this will be a permanent fix, after a month or two, its still good.
R**.
Stopped a coolant leak from the infamous 2006-2009 Honda R18 block crack!
Had just purchased a used 2006 Honda Civic as a second auto and sure enough the block cracked at the water jacket spewing the whole contents of the coolant overflow reservoir in 10 miles. This manufacturing defect is a known problem so much so that Honda extended the warranty to 10 years. Didn't help me of course as i bought it in 2022. So in goes the Bars System Repair. Why not ? Nothing to lose as a replacement block costs many times over the value of the car even if I found a worthy replacement or whole engine from a junkyard. What do you know? It worked!! My leak has slowed to a very manageable 2 oz. , maybe less a week. Since I check my oil every week, it is a routine check anyway. I have 3,000 additional miles since and the result far exceeds my expectations. The coolant temperature has not changed from it's normal range one bit either. I dare say maybe a little less! As the only fix for a cracked block is replacement, (even welding on aluminum is temporary at best), this product is genius! Congratulations to the chemists at Bars. NOTE: I recommend mixing with distilled water in a gallon jug first as one of the components is very viscous and gets burped out somewhat by air getting displaced from the radiator by it.
W**T
Don't buy don't use on a expensive car
Clogged my radiator cost me a 1200 dollar repair had to flush and then eventually replace the radiator i had no problem before just thought i should use it should of just exchanged my fluids
T**V
It actually works
Fantastic. Most of the time these miracle fix’s don’t work. I had a weird leak somewhere in my interceptor engine. Poured it in drove a bit leak gone. Very happy
T**E
It worked on my 2016 Kia Soul
So far it works. I bought a used car, did not realize it had a leak.
B**H
Stopped the leak great
A**.
Que buen producto, mi auto tenia unas pequeñas fugas ya se le habia cambiado la bomba y goteaba, desde que le puse el producto, a la fecha no he vuelto a llenar los Niveles de refrigerante, un gran producto, lo recomiendo utilizado en un MB C200
J**E
Excelente producto resolvió las micro fugas
G**E
Not a bad product my issue requires replacing parts. One of the better leak seals I've used.
M**Z
Sello bien la fuga, lo llevo usando por más de dos meses y continúa funcionando. Definitivamente lo recomiendo
Trustpilot
Hace 3 semanas
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