🚀 Revitalize Your Ride with Rust-Free Power!
CRC Thermocure Coolant System Rust Remover is a 32 oz non-toxic, water-based solution designed to effectively eliminate rust and scale from vehicle cooling systems. It treats systems up to 3 gallons and requires only three easy steps for application, ensuring a hassle-free experience for automotive enthusiasts.
J**Z
This has worked well for me but there are caveats, please read.
I have an older low mileage van where it appears that the cooling system just didn't get the regular attention a van with more miles and use might. This thing was probably stored for long periods of time. When I first bought it, it appeared to run hot at higher speeds but after some diagnostics the thermostat was determined to be the culprit. I looked into the radiator and it was an ugly rust brown mess. Several normal, no chemical additive flushes later the running hot problem still existed. At this point changing the thermostat probably helps but the corrosion in the cooling fluid, while it can be drained out, corrosion and scale would still be present on the heat exchange surfaces in the engine block, radiator and likely the now gunked up thermostat. Changing the thermostat without first treating the inner surfaces of the cooling system would only partially solve the problem. In this particular model of engine, a thermostat swap would also be a 3-5 hour ordeal - expensive. Enter Thermocure, and here are the caveats. Use it as directed but know that you will have to do more flushes to totally clean out the Thermocure. I did 6-7 post-Thermocure process before I started seeing clear water. What this stuff get out of your compromised cooling system is miraculous. On maintenance issues if I'm told to do it every 5000 miles, I do it every 3k. That's just me. I did the Thermocure flush twice, I used two containers, flushed a total of probably 10 times in all. But the interior of the cooling system is far cleaner, the van runs nice and cool, tak w longer to come up to operating temperature, and you can physically see the thermostat, now cleaned out, coming in and out depending on the stress applied to the engine. Before you use it, understand your vehicle's Hester core and why you have to run the heat in order to fully flush out your system. This stuff WORKS but know that you should probably take an extra step or two to get the best out of it. Simply adding some and draining the solution is only going part of the way. Add Thermocure, run engine for several hours, leave it in a few days, flush out solution, repeat, repeat several more times, repeat a couple more times in the interest of being thorough. This stuff works well and has saved me hundreds of dollars.
J**S
Great Product!
This product worked great at removing my system rust. This poor car was run for awhile on straight water and rusted up badly. After changing the coolant a couple times and still having an overheating problem, I tried this out to see if it'd help and I must say it did! I drained the radiator and filled it with Theromocure and distilled water. I then drove it to work for a couple days and man did the coolant change! The bottle on the left was what I started with and the 2nd one on was after the Evapo-Rust. It turned BLACK as night and smelled like dead fish! All in all it was in the system about 4 days and driven 3. To finish the flush I drained the radiator (with a cool engine) and took out the thermostat to speed the process. I filled it with more distilled water for another 10x cycles of running it for about a minute, flushing it and repeating. Now my system is super clean and ready for upgrades! I even took a drive on the current coolant/antifreeze and ran it hard to see if it'd would overheat in 100 deg F outside temps and was very pleased to see the needle never moved above normal. I highly recommend this product!
G**K
Great for rust in coolant system.
This is the product if you have rust in your coolant system. My race car runs only water so after a few seasons, major rust (bright orange water). Thermocool is the only cleaner product I find that gets all rust cleaned out. Fantastic product!
S**N
It worked good... too good.
I added this product in my system, and after the first day, a freeze plug dislodged from my engine block. Fortunately the plug was replaced without major engine work. Really wish that didn't happen because there's some rusting in my coolant system, but now I'm too paranoid to add anything other than coolant. The amount of time this product was in the system, it did appear to remove a good amount of rust.
S**Z
Rust is gone!!!
Ran this through my tractor radiator cooling system and wow what a black mess to come out. Works amazing and was easy to use. I will get this stuff from now on!
G**Z
DIY flush
Fantastic product! Used on my 1998 Ford F150. Inherited this vehicle, never serviced. I followed the directions. It took 3 complete flushes to remove the contaminants. Worth the effort and time!
T**M
Let the product sit and do its work.
This product is absolutely amazing, and it works just as described. I had been suffering from overheating. I have tried several flushes with no good results, and I constantly have rust in my block due to the previous owner running straight water for an unspecific amount of time. But now, with one evaporation treatment, there is no longer rust in my block, my radiator, or my overflow tank anywhere. I would highly recommend you buy this product and utilize it.
R**.
Cleaned the nastiest coolant system I've seen
A few years back, the heater core on my 2002 S10 got plugged up. I took a gamble, disconnected it, and blasted it out with a garden hose. It worked—for a while. But within a year, it clogged again.I flushed it again and realized if it was getting that gunked up that fast, I should probably take a look at the rest of the cooling system. Sure enough, the coolant looked like rusty-orangey vomit. I drained everything, filled it with distilled water, ran it, flushed, and repeated. And every time, the water came out black and chunky. It was gross—and frustrating.After five full distilled water flushes and trying a few different chemical flushes, I still wasn’t seeing clear results. The gunk just kept coming.Then I came across this product. I added it to the radiator, ran the truck for a few days, and when I drained it—holy hell—it was nastier than ever. But after that? My flushes finally started running clear.I did a final rinse, refilled with new coolant, and now the S10 is running like new again.Bottom line: this stuff works. Yeah, it’s a bit pricier than other flushes, but it actually did the job—first try. Super easy to use too. Just pull out some coolant, pour this in, run the engine a few days, and boom—radiator clean as a whistle.
Trustpilot
2 months ago
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