A motorcycle engine is more compact and higher revving (higher revolutions per minute) than an automobile engine allowing for faster acceleration, better responsiveness, and more efficient fuel economy. With so many parts moving rapidly in the tight confines of a motorcycle engine casing, lubrication is of utmost importance. The primary function of oil in a motorcycle engine is as a lubricator. It provides the fluidity within which all the various metal parts can perform their individual functions in close proximity. If oil were not present, metal on metal grinding would be inevitable, resulting in irreversible damage to a motorcycle engine. Oil allows the motorcycle engine to shift smoothly through all gears, upward and downward, allowing for smooth acceleration and deceleration, making every ride safer and more enjoyable.