Sunder is correct. Gasoline burns. <edit>That is, in the context of normal combustion inside an engine, the gasoline is burned. Even outside that context... such as a tank full of vapors, or vapor in the still air... I suppose it could be seen as an explosion. Even the fastest-burning pistol powder does not explode (in the context of normal operation).</edit>

Can we safely say the acetone discussion is finished? If not, keep going. I thought we discussed it rationally and sanely, without any drama. Thank you all! Any side topics, let's start another thread.