Everytime I read "sediment", I think of pebble-sized pieces of rock like the kind you'd see at the bottom of a riverbed.
Isn't the gas filtered (refined?) before it makes it to the tanker trucks? And is there any kind of filter at the gas stations? If sediments are making their way into your vehicle's gas tank, I highly doubt it is a large qty. My point is don't worry about the particles that make it past all the filters. They're so small that it won't even have an effect on anything whatsoever. My 2¢. Has anyone had to empty thier gas tank yet to see what is at the bottom? Curious. Take it easy, yall.
-Austin