Klotz Octane Booster is a concentrated tetraethyl lead substitute formulated to increase the octane rating of gasoline up to 10 numbers or more. 

Helps eliminated engine damaging detonation, spark knock, pre-ignition, and pinging from low octane gasoline. 

Modifies the burn speed and flashpoint of gasoline to create a stable combustion chamber flame front, maximizing performance and power. 

Stabilizes oxygenated gasoline to prevent leak-out conditions. 

Provides needed upper-cylinder lubrication that is missing in unleaded gasoline. 

For gasoline only. Sold each.