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Your cart is empty.Coolant treatment, cleaner , lubricant
Staci Teicheira
Reviewed in the United States on August 17, 2023
I discovered this product back in the early 90s while overseeing fleet maintenance operations for a large construction company. Ran it on many test vehicles from trucks to cars to heavy equipment. Virtually eliminated cooling system failures in the fleet. Engine blocks and radiators looked new after several thousand hours of operation. Zero rust. I have never run a vehicle since without it. Put it in your new vehicles as soon as you get them and you will never have cooling system issues. Follow the directions. You need to add/replace every few years.
ken
Reviewed in the United States on July 22, 2023
I have been using this product for decades. This was recommended by a friend who owned a radiator shop as an excellent coolant conditioner. Although it can't repair defects,it can lower operating temperatures by several degrees. I have used it in vehicles that had marginal cooling systems to keep them operating during summer heat.
John P O`Neill
Reviewed in the United States on October 11, 2023
care about your car? Use this stuff, its the best
Allen B Traub
Reviewed in the United States on March 27, 2022
I have a 2005 Buick Lacrosse 3.8 l . I noticed the heat wasn't very warm at operating temperature. So I searched the problem and found many worse case scenarios but no real solution's without spending a fortune. I ran into this before with my 2003 Ford Taurus and had it flushed which is still expensive at a repair shop. I looked for a flush that you can leave in which there isn't any all required immediately flushing the system. But I seen this RMI -25 and figured I would try it and put it in the overflow tank. Three weeks later all of a sudden I have heat for the first time since I bought the car. Now I put it in the overflow instead of the radiator due to the weather at the time. I just bought another bottle and put it in the radiator directly. I did a coolant check before hand and my coolant was in good shape clean and rated at -25 degrees. I took out 8 ounces and put it in the overflow and put the RMI -25 directly in the radiator. It works well and I am very satisfied with this product. I would recommend if your system is really bad to flush it out first. This stuff is nice because you can leave it in without worry. It worked for me and I Didi it the wrong way so it took longer to get into the system but if you do it the right way directly into the radiator per instructions it should work much quicker depending on how bad your system is scaled up.
Customer
Reviewed in the United States on November 6, 2020
I have been using RMI-25 since 1994 and it keeps cooling systems and internal engine passages stay like new no corrosion eliminates overheating and head gasket problems , I’ve been a mechanic for 50 years and this the single best product than anyone can use in there car engine to save thousands of dollars in engine repairs !!!!!!
Sigfod
Reviewed in the United States on January 7, 2017
This works as advertised. I used this in the LS2 of my 2006 CTS-V and it has been steadily cleaning up the coolant system and depositing junk. This works so well I will be adding it to all the vehicles at work. Don't expect this to touch dex-cool sludge, nothing will.
Robert
Reviewed in the United States on June 24, 2016
It does what it says it does, which is clean out your gunk while lowering water temps a few degrees. I get about a ten degrees operating temp difference with this stuff. Will ALWAYS run it in the future in all my cars period.
D. RIos
Reviewed in the United States on September 16, 2012
I used some Bar's Leak Copper Block Sealer on my vehicle because I had a gasket leak... It only worked for 2 days and then it killed my radiator. It's a long story where I tried everything in and between, Radiator Shops didn't guarantee a $100+ job working and I was about to dump my car since I spent over $500 on every fix I could see. I added RMI-25 and within days that Bar's Crap was released about 80%. It's still cleaning a left over but now I CAN USE MY CAR! Awesome Product, im buying it every time I decide to do a flush.
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