Worth the money? All hype or does it actually work?
Every motor I have taken apart where it was used was full of chalky white crap in the water passages. Would not recommend.
Yup,I have run water mixed with water wetter for 10 + years and could not be happier. Engines definitely run cooler with just water and water wetter added. The purpose of running water wetter is to prevent internal corrosion from just straight water, no anti freeze.