Most all US Presidents & MLK.
While Al Sharpton,Holder and Obama are preaching to sea of Blacks.
GURU watch the transport driver pour that additive in at the terminal and by the time it gets to destination its mixed. Get out of that cubicle and check for yourself.
Park near the Chevron GateRefinery in Pascagoula Ms and you will see Texaco Citgo Hess Shell every brand transport truck.