What does 1.5L displacement mean?

2 Answers
VioletMarie
07/24/25 4:57am
1.5 refers to the displacement. The space volume that the piston passes through when moving 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. More information about displacement is as follows: 1. The significance of displacement: Generally, the larger the displacement, the more energy the engine releases per unit time (i.e., converting the chemical energy of fuel into mechanical energy), which means better "power performance." Therefore, off-road vehicles and sports cars usually have relatively larger displacements. 2. The role of displacement: Engine displacement is one of the most important structural parameters. It represents the size of the engine better than the cylinder bore and the number of cylinders. Many indicators of the engine are closely related to the displacement.
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LeValerie
08/11/25 12:36am
I'm passionate about studying automotive mechanical details. A 1.5L displacement means the engine has a total cylinder capacity of 1.5 liters, essentially indicating the total volume of air and fuel the engine can intake and exhaust. This significantly impacts the vehicle: larger displacement typically means stronger horsepower but higher fuel consumption. A 1.5L engine is considered small to medium displacement, making it particularly suitable for city driving with good fuel efficiency. I usually drive a small SUV with a 1.5L engine, averaging only about 7L/100km in fuel consumption, and it handles stop-and-go traffic during commutes with ease. Nowadays, many cars incorporate turbocharging technology, allowing a 1.5L engine to deliver performance close to that of a 2.0L engine, combining practicality with environmental friendliness. For example, some Japanese cars have built their reputation on this. It's important to note that during maintenance, controlling engine temperature is crucial to avoid overheating and damaging the cylinders, and regular oil changes can make a big difference.
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