Some years back I was doing a tower job near the BP storage facility on the north end of town. I saw trucks from 6 different chains filling off the same tanks, none of them were BP.
Add a gallon or two of xylene (117) or toluene (111) if you want to bump the octane up.
Or you can get this:
http://www.sunocoinc.com/Site/Consum...California.htm 