A concentrated tetraethyl lead substitute formulated to increase the octane rating of gasoline up to 10 numbers or moreHelps eliminate engine damaging detonation, spark knock, pre-ignition, and pinging from low-octane gasolineModifies the burn speed and flash point of gasoline to create a stable combustion chamber flame front, maximizing performance and powerStabilizes oxygenated gasoline to prevent lean-out conditionsProvides needed upper-cylinder lubrication that is missing in unleaded gasolineA concentrated tetraethyl lead substitute formulated to increase the octane rating of gasoline up to 10 numbers or more Helps eliminate engine damaging detonation, spark knock, pre-ignition, and pinging from low-octane gasoline Modifies the burn speed and flash point of gasoline to create a stable combustion chamber flame front, maximizing performance and power Stabilizes oxygenated gasoline to prevent lean-out conditions Provides needed upper-cylinder lubrication that is missing in unleaded gasoline Not alcohol compatible