Various system and method for creating profiles of fuel quality are described herein. A system to create profiles of fuel quality comprises a receiving module arranged to receive vehicle performance data of a vehicle, the vehicle performance data describing the vehicle's performance over a time period; an association module arranged to associate the vehicle performance data with fuel used by the vehicle during the time period; an analysis module arranged to analyze the vehicle performance data with respect to the fuel to calculate a performance metric of the fuel; and a storage module arrranged to store the performance metric in a performance database at the computing system.