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Anyone ever use RMI-25? #4471647
07/27/17 07:42 AM
07/27/17 07:42 AM
Joined: Jul 2017
Posts: 96
GA
Pike51 Offline OP
Pike51  Offline OP
Joined: Jul 2017
Posts: 96
GA
One of our car club members swears by this stuff. He's been using it since 1989 in every vehicle he owns. He is a chemical engineer and I've learned to trust his judgement with regards to lubricants and other chemicals. I recently added some to the radiator on my 51 Chevy pickup and I'm looking forward to seeing the results. Just curious if anyone here has any experience with it.

www.rmi25.com

*I am in no way affiliated with this company.


1951 Chevy pickup 350/700r4
2013 GMC Sierra 1500 4x4
Re: Anyone ever use RMI-25? [Re: Pike51] #4471650
07/27/17 07:49 AM
07/27/17 07:49 AM
Joined: Dec 2006
Posts: 19
marlton, new jersey, usa
chartrue2 Offline
chartrue2  Offline
Joined: Dec 2006
Posts: 19
marlton, new jersey, usa
I have used this product for about 10 years now in both new and used vehicles. I can honestly say that it works! In the used vehicles, the "clean up" is visual as I can notice the difference after adding RMI25. It takes some time to work, but I can say that I think it does.

Re: Anyone ever use RMI-25? [Re: Pike51] #4471654
07/27/17 07:51 AM
07/27/17 07:51 AM
Joined: Aug 2011
Posts: 3,156
n.c.
gman2304 Online content
gman2304  Online Content
Joined: Aug 2011
Posts: 3,156
n.c.


I started a similar thread several years ago but a different product, a coolant additive called No-Rosion. I've used the No-Rosion for years and cooling systems are spotless. The RMI-25 sounds similar. Coolant additives aren't very popular here it seems.

Last edited by gman2304; 07/27/17 07:57 AM.
Re: Anyone ever use RMI-25? [Re: Pike51] #4471661
07/27/17 07:57 AM
07/27/17 07:57 AM
Joined: Mar 2004
Posts: 20,747
Upstate NY
Donald Offline
Donald  Offline
Joined: Mar 2004
Posts: 20,747
Upstate NY
I think it's a good product if there is a need. Newer coolants do not seem to need any cleaning of the cooling system if maintained properly.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Anyone ever use RMI-25? [Re: Pike51] #4471703
07/27/17 08:30 AM
07/27/17 08:30 AM
Joined: Sep 2012
Posts: 5,378
DFW
DBMaster Online content
DBMaster  Online Content
Joined: Sep 2012
Posts: 5,378
DFW
I read about it here when my 2012 Mazda was new. I've been adding 4oz to the coolant every 15,000 miles and I never plan to change it. Call it an experiment. There was nothing to clean so I am using it for the SCA characteristics.

Re: Anyone ever use RMI-25? [Re: Pike51] #4471766
07/27/17 09:19 AM
07/27/17 09:19 AM
Joined: Dec 2016
Posts: 6,226
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 6,226
Waco, TX
"After a period of time the dissolved solids will purge out of the system and into the coolant recovery tank."

So....... if you use RMI-25, you'd have to occasionally remove the recovery tank to clean out all the slime?


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Anyone ever use RMI-25? [Re: Pike51] #4471770
07/27/17 09:21 AM
07/27/17 09:21 AM
Joined: Sep 2012
Posts: 5,378
DFW
DBMaster Online content
DBMaster  Online Content
Joined: Sep 2012
Posts: 5,378
DFW
I guess beginning the use of RMI-25 when the car was new resulted in there being nothing to clean out. My car has a pressurized tank which isn't technically a "recovery" tank. The plastic hasn't even darkened in 80,000 miles. As I stated, my experiment will be never changing the coolant on this car - oh, the HORROR.

Re: Anyone ever use RMI-25? [Re: Pike51] #4471807
07/27/17 09:59 AM
07/27/17 09:59 AM
Joined: Feb 2011
Posts: 2,039
California
Stelth Offline
Stelth  Offline
Joined: Feb 2011
Posts: 2,039
California
I haven't used it, but I think I will.


Experts are often wrong, but rarely in doubt.
Re: Anyone ever use RMI-25? [Re: Pike51] #4471914
07/27/17 12:00 PM
07/27/17 12:00 PM
Joined: Mar 2014
Posts: 119
South Jersey
topbliss Offline
topbliss  Offline
Joined: Mar 2014
Posts: 119
South Jersey
been using for years, love it

Re: Anyone ever use RMI-25? [Re: Pike51] #4472132
07/27/17 03:49 PM
07/27/17 03:49 PM
Joined: Jul 2015
Posts: 246
TX-Texas
mctmatt Offline
mctmatt  Offline
Joined: Jul 2015
Posts: 246
TX-Texas
Can it be ordered online as I do not see a way to place an order in their website.

Re: Anyone ever use RMI-25? [Re: Pike51] #4472228
07/27/17 05:48 PM
07/27/17 05:48 PM
Joined: Sep 2012
Posts: 5,378
DFW
DBMaster Online content
DBMaster  Online Content
Joined: Sep 2012
Posts: 5,378
DFW
I have bought my last two bottles from sellers on eBay. This was a reminder to get another bottle. Total cost, $13.95 for an 8oz bottle. You basically use 2oz per gallon of coolant. I've seen other forums in which people say they use RMI-25 with distilled water in place of any coolant. I won't go that far.

Re: Anyone ever use RMI-25? [Re: Pike51] #4472373
07/27/17 08:28 PM
07/27/17 08:28 PM
Joined: Jul 2015
Posts: 246
TX-Texas
mctmatt Offline
mctmatt  Offline
Joined: Jul 2015
Posts: 246
TX-Texas
I found it selling on Amazon so that will work.

Re: Anyone ever use RMI-25? [Re: DBMaster] #4472790
07/28/17 08:45 AM
07/28/17 08:45 AM
Joined: Jul 2017
Posts: 96
GA
Pike51 Offline OP
Pike51  Offline OP
Joined: Jul 2017
Posts: 96
GA
Originally Posted By: DBMaster
I have bought my last two bottles from sellers on eBay. This was a reminder to get another bottle. Total cost, $13.95 for an 8oz bottle. You basically use 2oz per gallon of coolant. I've seen other forums in which people say they use RMI-25 with distilled water in place of any coolant. I won't go that far.


The gentleman who turned me on to this product uses it with distilled water as do several other members of our club. We're in south Georgia where freezing isn't a concern and they all claim that they see better running temps from distilled water than they do with a coolant mixture.

I'm more concerned about corrosion without the coolant than anything else.


1951 Chevy pickup 350/700r4
2013 GMC Sierra 1500 4x4
Re: Anyone ever use RMI-25? [Re: Pike51] #4472840
07/28/17 09:21 AM
07/28/17 09:21 AM
Joined: Sep 2012
Posts: 5,378
DFW
DBMaster Online content
DBMaster  Online Content
Joined: Sep 2012
Posts: 5,378
DFW
^I think my car is pretty easy on coolant. Mazda's friction reduction efforts on the "Skyactiv" engine also paid dividends with operating temperatures. The FL22 coolant from the factory is supposed to be good for 122,000 miles (weird number, right?). That's why, with the regular use of RMI-25 I don't plan to change the coolant. I have seen a number of people on BITOG state that plain water is better for heat removal than coolant, but of course, we use coolant to prevent other things.

Re: Anyone ever use RMI-25? [Re: Pike51] #4473027
07/28/17 12:43 PM
07/28/17 12:43 PM
Joined: Sep 2012
Posts: 5,378
DFW
DBMaster Online content
DBMaster  Online Content
Joined: Sep 2012
Posts: 5,378
DFW
I have to say that I'm impressed with the restraint shown by BITOGers in this thread. I kept repeating that I was never going to change my coolant and no one chimed in about premature engine demise. Awesome, folks!


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