How can you reduce knocking in you car's engine?
A) Get an oil change
B) Use higher-octane gasoline
C) Switch to diesel fuel
D) Tune the engine so that the gasoline pre-ignites

Question

Quizplus · Accepted Answer

Using higher-octane gasoline can reduce knocking in an engine because it has a greater resistance to pre-ignition, which is a common cause of engine knocking. Higher octane fuel combusts at a more controlled rate, preventing the premature ignition that leads to knocking.

How Can You Reduce Knocking in You Car's Engine