What is the fuel consumption per 100 kilometers for a 1.8L engine?
3 Answers
The fuel consumption per 100 kilometers for a 1.8L engine is approximately 6~8L. Here are some related details: 1. Fuel Consumption: Vehicle fuel consumption is calculated based on the amount of fuel consumed per 100 kilometers (commonly referred to as 100 km). 2. Fuel Consumption Calculation: You can use the formula fuel consumption * fuel price / 100 km to calculate how many liters of fuel are burned per 100 km. For example, when people say 8 liters or 9 liters, they mean 8 liters or 9 liters of fuel consumed per 100 km. Notes: 1. Note 1: Maintaining proper tire pressure is a good way to reduce fuel consumption. If tire pressure is insufficient, rolling resistance will significantly increase. According to tests, if tire pressure is 2 psi (pounds per square inch) below the recommended value, fuel consumption will increase by 1%. Additionally, misaligned or excessively worn tires can also increase fuel consumption. 2. Note 2: Over time, the oxygen sensor is prone to silicon poisoning. Once this occurs, the electronic fuel injection system's computer cannot receive information about the oxygen concentration in the exhaust pipe, often leading to a higher concentration of the air-fuel mixture in the engine and increased fuel consumption. Similarly, when there is insufficient power, the oxygen sensor and fuel injector cannot function properly, resulting in a richer air-fuel mixture and higher fuel consumption. Typically, the oxygen sensor needs to be replaced between 80,000 to 110,000 kilometers.
I think the fuel consumption per 100 kilometers for a 1.8L engine really depends on the specific model and driving habits. For example, my old Corolla with a 1.8L naturally aspirated engine consumes between 7.5 to 8.5 liters in city commuting with AC on, and drops to just over 6 liters on the highway. Recently, I drove a colleague's domestic SUV with a 1.8T engine, and it easily exceeded 10 liters in the city. The type of transmission makes a big difference—manual transmissions generally save about 1 liter compared to automatics. Also, details like tire pressure and oil viscosity matter. Last time my tire pressure was low, it increased consumption by 0.8 liters.
A veteran taxi driver with 20 years of experience said that the fuel consumption of a 1.8L engine largely depends on the 'golden right foot.' With an empty 1.8L manual Jetta, maintaining a steady speed of 60 km/h can achieve the most fuel-efficient rate of 5.8L per 100 km. However, in traffic jams or with aggressive throttle use, the displayed consumption can jump directly to 9L. Running the AC in summer typically adds 1.5L, and prolonged warm-up times in winter also increase fuel usage. Avoid storing unnecessary items in the trunk—every extra 50 kg adds approximately 0.4L. Regularly cleaning the throttle body and replacing the air filter can save at least 0.5L of fuel.
