Originally Posted by
Egoracing
If you are running a virgin aluminum block and all new stuff it will but if you are running a cast iron block or heads there is enough impurities that will get into the water that it removes the benefits as soon as you put it in. The reason Distilled works is that it is pure and will not boil. Once you introduce anything that will suspend in the water it's boiling point is back to the same place as regular water. The only other benefit it has is you are not adding any minerals or salts to the system. If you have hard water it is the best way to go, if you have good filtered water it is as good and will save you some money.