This topic was discussed in quite a bit of detail a year or so ago. Do a search on toluol or toluene (both words mean the same thing). At that time, I contacted a petroleum engineer who was also a high performance car buff and inquired about the composition of gasoline. If I remember correctly, toluene was one of the major components in gas so any remarks about toluene being very dangerous are nonsense except for the fact that it is highly flammable and somewhat toxic, just like gasoline.
That thread didn't seem to go off topic, certainly not as much as this one did.
Wayne