Crude Oil refining has undergone dramatic changes in recent years. Diesel fuels are being manufactured through a process called "catalytic cracking" which is accomplished by taking previously unacceptable molecules of a heavier molecular structure and reducing their size through a high-temperature thermal process to enable them to be used in middle distillate fuels. This results in fuels with poorer ignition quality. DSI Platinum Performance Diesel Treatment is the modern solution for problems associated with today's fuels.