ABRO Gasoline Octane Booster

Fuel Octane Booster increases your fuel's octane rating to stop engine hesitation, knock and ping, while also increasing power and performance. The formula works equally well on classic muscle cars, newer, smaller, harder-working engines, off-road and racing applications. The increased octane allows the engine to run optimum spark timing, which not only creates more power, but also, in many engines, reduces emissions and increases fuel mileage. It's also the best insurance against bad gas you can find.
Antiknock formulation stops engine knocks and pings caused by low quality fuel.

What is spark knock?

Spark knock, also known as knock, detonation, knocking or pinging in gasoline engines is when the air/fuel mixture in the cylinder explodes separately from the main ignition caused by the spark plug. This usually creates a metallic “knock” sound as the two fronts collide with each other causing extreme pressure inside the cylinder and possible engine damage.