What does 1.8L mean?

[OKiara]

Engine 1.8L means that the car's displacement is 1.8 liters, where L stands for liters. Car displacement is an important parameter to measure a vehicle, and the displacement is usually marked on the body or rear of the car. Car displacement refers to the volume of fluid inhaled or expelled per cycle. Displacement consists of three parts: the first part is composed of 2 or 3 pinyin letters, which are codes identifying the manufacturer's name. Following the pinyin letters are usually 4 Arabic numerals. For passenger cars, the first digit on the left is "7," and the middle two digits represent the engine displacement of that car model. For example, "08" indicates an engine displacement of 0.8 liters, and "2.0" indicates 2.0 liters. After the digits representing displacement, there is another digit indicating the manufacturer's self-defined product sequence number. The classification of passenger car levels is determined by the size of the displacement: mini cars have a displacement of ≤1.0L; compact cars have a displacement ranging from 1.0—1.6L; midsize cars range from 1.6—2.5L; executive cars range from 2.5-4.0L; and luxury cars have a displacement >4.0L.

[DiJoanna]

When I first learned to drive, I was also puzzled by these numbers. Simply put, 1.8L means the engine displacement is 1.8 liters. Displacement calculates the total volume of air-fuel mixture that all cylinders in the engine can suck in. For example, 1.8 liters means the combined volume of all cylinders is 1800 milliliters. This number is quite crucial. Cars with larger displacements like 1.8L usually have more power, making it more confident to step on the gas for overtaking. They also consume more fuel than 1.5L engines but are more fuel-efficient than 2.0L ones. When choosing a car, we need to consider both road conditions and our budget. For city driving, a 1.8L engine is actually quite balanced.

[VonMaggie]

Having worked in car repairs for twenty years, I've seen all kinds of displacement labels. The 1.8L indicates the intake volume of the engine in a single cycle. Specifically, for an engine with four cylinders, each cylinder has a volume of about 450 milliliters, adding up to 1.8 liters. Displacement is related to horsepower but not directly equivalent. Nowadays, a 1.5T with turbocharging can be more powerful than an old 1.8L. However, naturally aspirated 1.8L engines are indeed durable and reliable, especially those old cars whose engine compartments show no issues when opened, indicating a very mature mechanical structure. When choosing a car, don't just be impulsive because of a large number. For city driving, a 1.8L is completely sufficient.

[VonIsabelle]

1.8L is the engine displacement marking method, representing a total engine volume of 1.8 liters. When the engine operates, the piston moves up and down in the cylinder, and the amount of air swept by the piston from top to bottom is the single-cylinder displacement. The sum of all cylinders gives the total displacement. Generally, a larger displacement means stronger power but also higher fuel consumption. 1.8L is considered the golden displacement, balancing both power and fuel economy, commonly found in family cars.

[MacMaya]

Young people looking at cars might not understand these parameters. 1.8L refers to the engine displacement. Simply put, it's like a person's lung capacity—a larger displacement is like having greater lung capacity, resulting in faster throttle response and more effortless overtaking. I've driven a 1.8L car with a fuel consumption of around 8 liters per 100 km, which is slightly more than a 1.5L engine but provides more power when climbing hills. Nowadays, 1.8L is commonly found in naturally aspirated engines. In the same price range, turbocharged models might have smaller displacement numbers but offer comparable performance. Remember, displacement isn't the only indicator—a test drive gives the most accurate feel.