Which is more fuel-efficient, 1.8T or 2.0T?

[MacFinn]

2.0T is more fuel-efficient than 1.8T. Vehicles with larger displacement tend to have lower fuel consumption in urban areas because they can easily drive the vehicle at lower RPMs. More details are as follows: 1. According to relevant data, vehicles with larger displacement have lower urban fuel consumption than those with smaller displacement. The reason is that larger displacement vehicles can effortlessly drive at lower RPMs, allowing them to adapt smoothly to frequent starts and stops in urban driving. 2. However, the situation changes on highways. The excess power of larger displacement vehicles becomes unnecessary, making smaller displacement vehicles more fuel-efficient on highways. But this is based on the premise that the vehicle models are basically the same, with similar weight and small differences in displacement.