Don't worry about that. Just have some cookies and milk ready to give to the DEA, after they kick your doors in! :lol
BTW, I read similar articles to what John B posted. Note that toluene is the most cost effective, but is much higher in price than $2.50/gal. When I check it was more like $8/gal in a 55 gal drum special order from the paint store. I don't know if you get on the DEA list, but if you pay in cash and cover up your license plate, you are good to go. :rofl Note you have to be careful not to spill the stuff, as I have heard that it can damage your paint. Toluene is harder to vaporize, so depending on the temperatures you drive in, adding too much will cause hard starting problems. 30% is considered max, and that is for warm weather use. Also note that you are diluting out the additive package in the gasoline the more you add. That cannot be good for the car.