Deionized or Distilled water in a cooling system?

[joesregalproject]

I've been running straight creek water for years, no issues.

 

[Supercharged111]

I've been running straight creek water for years, no issues.

New creek water > old rusty creek water. I switched to tap myself since I don't run coolant for 10 consecutive years.

 

[olds307 and 403]

Unfortunately with consecutive months of -40 up here, straight water isn't an option. I usually go with 55 or 60% coolant to water, just to be safe.

 

[bracketchev1221]

Tap water and coolant

 

[Streetbu]

Do NOT use deionized water. It is stripped of everything and doesn't have a charge either. Will attack anything it can to get a charge and some semblance of balance back. It's not good to drink either, will drain your body of nutrients.

 

[Turbo Zach]

You guys have too much time on your hands!

 

[86LK]

Deionized Water Vs Distilled Water - Knowing The Difference

Curious about the differences between deionized water and distilled water? Learn more at US Water Systems.

www.uswatersystems.com

Why You Should Never Use Distilled Water in Your Cooling System | Rislone

Many people have "heard" that distilled water is the best water to use in a cooling system. This is wrong! Let us tell you why.

rislone.com

 

[SS_Malibu]

So isn't 50/50 coolant already half water and half coolant? Why would you add water to that?

 

[bracketchev1221]

Do NOT use deionized water. It is tripped of everything and doesn't have a charge either. Will attack anything it can to get a charge and some semblance of balance back. It's not good to drink either, will drain your body of nutrients.

Yup it’s true. It’s a chemistry thing.

 

[joesregalproject]

New creek water > old rusty creek water. I switched to tap myself since I don't run coolant for 10 consecutive years.

I just filter my old rusty creek water through a coffee filter and put it back in. No reason to walk down to the creek if I don't have to.

So isn't 50/50 coolant already half water and half coolant? Why would you add water to that?

50/50 is prediluted with water, no mixing needed. I believe we are talking about the concentrated versions that you have do dilute yourself.