Hi,

Can someone explain to me why on the directions of the back of the bottle say "Do NOT use distilled water unless mixed with 50% antifreeze?

For straight water applications, it says to use tap or soften water?

I'm just a little confused..

Thanks in advance!

 

It seems that it's saying if you run the product with straight water and no antifreeze not to use distilled water.
If your running an antifreeze/water mix plus the product you can use distilled water in a 50/50 mix with coolant and then add the product.

 

i was always told to use distilled water in the cooling system. distilled water is more pure then tap water and has no chemicals in it like tap.

 

Tap water that has lots of mineral content can possibly cause mineral deposits in the cooling system.
But I'll bet your local dealer uses tap... and honestly I havent really seen any considerable negative effects from using tap water yet, as long as you keep up on proper fluid change schedules.

 

I guess where my confusion is that I've always been told never to use tap water for any straight or mixture combination because like you said the mineral content. In this case, according to the directions on the bottle is not use distilled water to use tap or softened water for 100% water coolant systems. Just contradicts what I heard and used...Just curious to be honest. What would happen if I used distilled water instead of tap water?

 

You would have to talk to Amsoil about that, but using straight tap is not going to hurt it honestly unless you have some serious hard water in my experience.
I ran my High-comp miata with tap water and water wetter for years just to see what would happen with no visible build up in the cooling system, with regular fluid changes of course.

 

OK...found my answer...

Distilled water (mineral free pure water) is ionized, meaning it has a non-neutral charge. When using straight water in your radiator or intercooler system, ionized water will pull any mineral from the metals in a cooling system to balance this non-neutral charge. Tap or softened water is already neutral, and will not cause any minerals from the metal in your cooling system to be taken into the suspension of the water. It's OK to use tap or softened water with Coolant Boost, as it protects the metal from corrosion and/or rust.

It's OK to use distilled water when glycol (anti-freeze) is used in the mix. This negates the non-neutral charge.

 

Bingo!! Ive been using tap for years with no problems...

 

I prefer Redline WaterWetter. Worked wonderfully in my Cobra, immediately dropped temps quite a bit and I was rather surprised.

Never heard of this product before, I'll have to see how it compares.

 

AMSOIL rules

 

Untill theres an analysis its all snake oil...

 

I understand your viewpoint. Most car products are crap. WaterWetter however actually worked on my Mustang quite noticeably. Others have said the same thing about that product, mostly hot climates benefit the most.

For $7 it was worth a few horsepower in hot weather. If you know Mustangs they pull timing like crazy when hot and thus lose performance quite badly in hot weather.

I've never tried any products like this with the Evo yet however. With the Mustang I swore by SeaFoam and WaterWetter. Just my 2 cents.

 

I've been using water wetter for years works awesome great stuff, I am also very familiar with sea foam both great products! They both work great in evo's as well.