What Does 1.5L Mean?

[McLilah]

1.5L refers to the engine displacement. Below are relevant explanations about displacement: Introduction: Displacement, a specialized term in hydraulic transmission, refers to the volume of fluid inhaled or discharged per stroke or cycle. Generally, a larger displacement means the engine releases more energy (converting chemical energy from fuel into mechanical energy) per unit time, resulting in better "power performance." It's like comparing a teenager to a healthy adult—the adult is naturally more efficient at physical labor. Therefore, vehicles like SUVs and sports cars typically have relatively larger displacements. Cylinder Displacement: The working volume swept by the piston moving from top dead center to bottom dead center is called the cylinder displacement. If an engine has multiple cylinders, the sum of all cylinder working volumes is referred to as the engine displacement, usually expressed in liters (L). Engine displacement is one of the most important structural parameters, more representative of engine size than bore and cylinder count. Many engine performance metrics are closely related to displacement.