A point-of-sale fuel dispensing system comprising: a market fuel storage tank; a pump assembly comprising: a customer interface for retail payment and fuel grade selection; and a nozzle configured to provide selective fluid coupling to a fuel supply port of a vehicle that is situated adjacent the pump assembly; fuel conduit cooperative with the pump assembly and the market fuel storage tank to provide selective fluid communication between the pump assembly and the market fuel storage tank; a separation unit configured to selectively receive and convert at least a portion of a market fuel into an octane-rich fuel component and a cetane-rich fuel component; a plurality of enriched fuel product tanks disposed fluidly intermediate the separation unit and the pump assembly, the plurality of enriched fuel product tanks comprising: a first enriched fuel product tank for selectively receiving and containing the octane-rich fuel component; and a second enriched fuel product tank for selectively receiving and containing the cetane-rich fuel component; and a controller cooperative with at least one of the market fuel storage tank, pump assembly, fuel conduit, separation unit and first and second enriched fuel product tanks to direct the flow of at least a portion of at least one of the octane-rich fuel component and the cetane-rich fuel component contained within a respective one of the first and second product tanks through the nozzle based on user input at the customer interface for both retail payment and fuel grade selection for the vehicle, wherein the directed flow does not exceed a fuel storage capacity of the vehicle. a market fuel storage tank; a pump assembly comprising: a customer interface for retail payment and fuel grade selection; and a nozzle configured to provide selective fluid coupling to a fuel supply port of a vehicle that is situated adjacent the pump assembly; a customer interface for retail payment and fuel grade selection; and a nozzle configured to provide selective fluid coupling to a fuel supply port of a vehicle that is situated adjacent the pump assembly; fuel conduit cooperative with the pump assembly and the market fuel storage tank to provide selective fluid communication between the pump assembly and the market fuel storage tank; a separation unit configured to selectively receive and convert at least a portion of a market fuel into an octane-rich fuel component and a cetane-rich fuel component; a plurality of enriched fuel product tanks disposed fluidly intermediate the separation unit and the pump assembly, the plurality of enriched fuel product tanks comprising: a first enriched fuel product tank for selectively receiving and containing the octane-rich fuel component; and a second enriched fuel product tank for selectively receiving and containing the cetane-rich fuel component; and a first enriched fuel product tank for selectively receiving and containing the octane-rich fuel component; and a second enriched fuel product tank for selectively receiving and containing the cetane-rich fuel component; and a controller cooperative with at least one of the market fuel storage tank, pump assembly, fuel conduit, separation unit and first and second enriched fuel product tanks to direct the flow of at least a portion of at least one of the octane-rich fuel component and the cetane-rich fuel component contained within a respective one of the first and second product tanks through the nozzle based on user input at the customer interface for both retail payment and fuel grade selection for the vehicle, wherein the directed flow does not exceed a fuel storage capacity of the vehicle. <EOS>