The Ray Sphere was a device used by transferring the neuro-electric energy from a group of people to concentrate it into a human indevidual to unlock his/her powers. Though it will unlock the dormant abilities of the Conduit, it will kill the catalysts, and worse, cause a catastrophic explosion.
How many gallons of gas does the average mid-size car hold? The average fuel tank size for mid-size cars is 16 gallons. If the  price of gas was $3.59 per gallon, it would cost $57.44 to fill a  16 gallon tank.
The fuel tank capacity of the 1999 GMC Sierra 1500 is 26 gallons.  Its fuel economy is 13 miles per gallon in the city, and 16 miles  per gallon on the highway.   The consumerguideauto.howstuffworks.com (used car section) says 27 gallons, as does a 1993 Chevy Astro Van owner's manual (this class of vans are all the same).