well, someone asked me whether or not to leave the air space at the
top of a container full of gasoline ... that is, is it better to fill
it completely up (leaving NO air space at all) or to leave a few
inches of air. i'd always been taught (and found it true from
experience) that you always left inches of air for expansion ... that
liquid gasoline expands a LOT when it is warmed up.

but i'm not always right. ;) so i decided to go looking for something
to back me up ... check out the following:

http://www.shrinershq.org/Prevention/BurnTips/gasoline.html

http://www.api.org/consumer/handlefuel.htm

http://www.chevron.com/prodserv/bulletin/product_safety.html
(way down in Filling Procedure)

anyway, you get the idea: gasoline is powerful stuff, and can be VERY
dangerous if not handled properly. like a lot of other stuff in our
modern lives, we tend to take it for granted (like 4000 lb machines
that travel at 88 feet per second!).  so be careful out there. ;)

unca joel