Alcohol question?

[Dave Harris sctchbld]

Recently while reading a post about weathering I saw a reference made that denatured alcohol found in a hardware store and Rubbing alcohol are quite a bit different. In checking I found this to be somewhat true-- however both are "denatured" to the extent that neither are drinkable. I have always used rubbing alcohol in my modeling work -- both for diluting ink and as a thinner etc------is it possible I could have gotten better results with true hardware store "denatured alcohol? I am serious in this question --is there really a difference --if so, I WILL get the proper type.
Thanks Dave