6inarow, I wasn't trying to prove or disprove anything. Just did a cursory search and found the cited article. There are a lot of "additive" type of things marketed with dubious merit (tornado, magnetic fuel aligners, etc). If it really does what is claimed, then count me as a convert. We should be able to discuss ideas without anyone taking it personal.
Now, I am not a chemist but it can't be that hard to get out a chemistry book and determine if tin can act as a catalyst, or do a literature search for peer review papers; you don't have to spend your hard earned money to determine everything experimentally. Time and money are too short for that.
