How bad a driver do you have to be to cheat with dangerous fuel additives?[/b]
Wow! IF they are running a fuel that passes the test how is that cheating?

DC 15 MAX right?

Further, the ITCS allows for "oil and oil additives are unrestricted". Rotaries mix the fuel and oil....

If you don't want the types of fuels out there that do that sort of thing (I know I don't) then create a rule that disallows them and a test to find them.

Just because it irritates the crap out of your mucus membranes doesn't mean that it won't pass the fuel test any more than just because it doesn't bother you indicates it will.