Hi Test Octane Boost - 16 U.S. Fl Oz. 83916

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...

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...