What is the difference between 1.5L and 1.8L?
2 Answers
The differences between 1.5L and 1.8L lie in displacement and knock prevention. Below are the relevant details: 1. Displacement: Displacement is a crucial structural parameter that comprehensively measures the size of an engine. The performance indicators of an engine are closely related to its displacement. Generally, the larger the displacement of a car, the higher its power output. Unit displacement is commonly used as a basis for comparing the sizes of different engines. The total working volume of all cylinders in a multi-cylinder engine is referred to as the engine displacement. 2. Knock Prevention: To prevent knocking, higher-octane gasoline is required. The higher-grade gasoline needed for a 1.8L engine undoubtedly increases the owner's expenses. Automobile manufacturers have employed various technologies to minimize the occurrence of knocking during the engine combustion process.
The difference between 1.5L and 1.8L engine displacements is quite significant. From my driving experience, 1.5L cars are more agile in urban areas, with smoother starts, quieter engine sounds, and lower fuel consumption. For example, when I drive to work, it only consumes about 6-7 liters per 100 kilometers, making it very economical for daily commuting. On the other hand, the 1.8L engine offers noticeably stronger power, faster acceleration, and feels more responsive when climbing hills or overtaking on highways. However, the fuel consumption of the 1.8L model does increase, typically around 8-9 liters per 100 kilometers, though it performs more smoothly on long trips. Additionally, 1.8L engines may prioritize durability, often seen in older models. But if you do most of your driving in the city, the 1.5L's economic advantages stand out more, with lower maintenance costs, making it easier for new drivers to handle. Overall, larger displacement cars are better suited for those who prioritize driving experience, while smaller displacements are ideal for budget-conscious users.
