A few sides notes regarding the 100% comment. wink
There is nothing 100% about denatured. The ATF wants you to know and makes this well known:
The purest of the denaturing formulas is SD3A, which is 95% ethanol with 5% methanol. SD3A is authorized for manufacturing use at facilities that are licensed for its use. It may not be sold to the general public. The purest authorized denaturing formula that may legally sold to the public is reagent alcohol, which is 95% SD3A with 5% isopropanol. Reagent alcohol is a suitable replacement for pure ethanol in almost all laboratory procedures.
So, the denatured WE buy is broken down EVEN FURTHER. I hope this helps to bring some clarity to alcohol, after all...it's clear too. wink
If you ask me, John is one smart cookie using Methanol, no other ingrediants present to ruin the consistancy of his V-6 "moonshine" black kettle. headbang