Toluene for octane

Hey guys, before we get all crazy about the dangers of toluene, gasoline already contains up to 40% toluene as per the MSDS sheets. Race fuel likely contains more than pump fuel.

[ame]http://www.online.petro-canada.ca/datasheets/en_US/w102e.pdf[/ame]

So if you have ever had gasoline on your skin or breathed the fumes you have been exposed to it. I am no expert, but with all the crude oil derived things that end with "ene", long term exposure is bad and could kill you. One time exposure you are probably fine. But wear proper PPE!