Originally Posted by DynoFlash

The alcohol our kits run and which is sold at Home Depot is "Denatured Alcohol" - denatured refers to the process wehereby the alcohol is rendered undrinkable by the addition of methanol which tastes like crap and which will poison you. Anyone can posses denatured alcohol - no matter what the age.

Originally Posted by Pianoman90

Well while we're on the subject... I understand how the alcohol injection works, but I have a few questions. How often do you have to fill back up with the alcohol if you use it on the street? What does denatured alcohol usually cost?