Best Cooling System Treatment?

[Chuck1986]

I'm looking for a good cooling system treatment that specifically has corrosion inhibitors and prolongs the life of the water pump. (Although, I'm not sure if a simple chemical you put in the radiator prolongs water pump life.)

Any opinions?

 

[VaderSS]

RMI-25 is the best cooling system treatment I've seen.

 

[Ray H]

Water pumps have pressed-in permanently sealed bearings. NOTHING claiming to be a lubricant for water pump bearings you can add will affect bearing life. The bearing seals may be affected by abrasive coolant contaminants, though. If that happens, NOTHING you can add to the coolant will prevent the inevitable resulting bearing destruction. A balanced corrosion inhibitor package is already formulated into the antifreeze you use. Additional anti-corrosion chemistry over and above what the antifreeze formulator included runs the risk of incompatibility problems down the road. In hot climates such as yours, antifreeze also protects against coolant boil-off. Keep your cooling system well maintained according the your vehicle owner's manual recommended service intervals and dilute your choice of antifreeze concentrate with distilled water to the recommended 50/50 ratio and you'll be fine. If your engine uses a timing belt and has its water pump located behind the engine front covers, figure on prophylactically replacing the water pump at each timing belt service - even if there're no apparent problems with the pump. It's cheaper that way than chancing paying the labor charge all over again 10,000 miles later just to replace a $70.00 pump.

 

[Chuck1986]

Ray- You mentioned anti-corrosion chemicals in the antifreeze chemistry. I'd like to add something with anti-corrosion properties simply because I am running a 40% coolant/60% water set-up..having less coolant and more water may be more vulnerable to corrosion than if I had a higher concentration of coolant. So I would like to add some kind of cheap treatment as a preventive maintenance. Does this theory make sense?

 

[boxcartommie22]

i use the same mixture as you do chuck but with g-05..i add i feel is the very best additive in it is BG'S Super cool..i got mine ay car quest or napa.

 

[jmacmaster]

I don't think you need ANY cooling system additive. There's already enough treatment materials in any antifreeze you buy.

 

[UncleS2]

RMI-25, used with traditional "green type" ethylene glycol antifreeze, seems to have kept the cooling system of my 97 Neon clean as a whistle inside. It constantly cleans, & in my car produces a thin layer of light tan sediment that seems as fine-grained as flour in the bottom of the overflow tank. That's the cooties it got out of the system!

It's compatible with cast iron, steel, aluminum, brass, plastic, you name it. My car has iron block, aluminum head & intake, steel tubes, & plastic + aluminum(mebbe a little brass?) radiator, so it's a pretty good test.

I haven't used it, but Schaeffer Clean & Cool has a big fan club too. Either one should do well for you.

I'm in the middle of radiator replacement right now, flushed out the block & heater core yesterday with garden hose & tap water. Gonna pull one heater hose today & check, if what stands in that steel tube is clean water then it's as well flushed as humanly possible. It'll then be ready to re-assemble with new radiator.

I know of nothing that's "magic" for water pumps, though.

 

[TheTanSedan]

I've used and would recommend both SCHAEFFERS "Clean & Cool" and RADIATOR MASTERS RMI-25.

The latter is being used in our current vehicles, bought used; laboriously cleaned, flushed, refilled to factory spec with deionixed water and factory coolant.

Any peek under rad cap reveals pristine appearing tank/fins.

Near to 100,00 miles of use.

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