JB Octane Booster

Increases octane number of gasoline. Stops knocking, pinging, overheating & "afterrun" caused by low gasoline. Will not harm catalytic converters or oxygen sensors.

• Stops knocking, pinging and overheating caused by low octane gasoline
• For all grades of leaded and unleaded gasoline
• Prevents hard starting
• Safe for use in cars with catalytic converters