Are Turbocharged Cars More Fuel-Efficient?

[AmirLee]

Turbocharged cars are not necessarily more fuel-efficient. The details are as follows: 1. Comparison of the same displacement: A 1.8L engine is definitely more fuel-efficient than a 1.8T engine. Turbocharging increases power by allowing more air into the engine to burn more fuel, so it inevitably consumes more fuel than a naturally aspirated engine. 2. Comparison of the same power: A 1.8T engine corresponds to a naturally aspirated engine of similar power, such as a 2.4L. However, the former still consumes fuel at the rate of a 1.8L engine at low speeds or in congested areas, making it more fuel-efficient compared to the latter's larger displacement naturally aspirated engine. Precautions for using turbocharging: 1. Poor fuel quality: When the engine uses poor-quality fuel, some of the fuel does not burn completely and turns into particles that pass through the exhaust system, adhering to the turbo blades. Over time, this can cause damage to the turbo blades. 2. Engine carbon deposit cleaning: When cleaning carbon deposits, these deposits are expelled from the engine in particle form along with the exhaust gas and adhere to the turbo blades, increasing the turbo's load. Gradually, this can damage the bearings and blades in that area.