What is the difference between 1.5L and 1.8L engines in cars?

[MacEmilio]

The differences between 1.5L and 1.8L engines in cars: 1. Different constant-speed fuel consumption: 1.5L cars have lower fuel consumption than 1.8L cars when driving long distances on highways; 1.8L cars have higher fuel consumption than 1.5L cars when driving long distances on highways. 2. Different comprehensive fuel consumption: 1.5L cars have lower overall fuel consumption than 1.8L vehicles when considering various road conditions; 1.8L cars have higher overall fuel consumption than 1.5L vehicles when considering various road conditions. The volume of space that the piston moves from top dead center to bottom dead center is called the cylinder displacement. If the engine has multiple cylinders, the sum of the working volumes of all cylinders is called the engine displacement, usually expressed in liters (L). Engine displacement is one of the most important structural parameters, as it represents the size of the engine more accurately than cylinder diameter and number of cylinders. Many indicators of the engine are closely related to displacement.