Which is More Fuel-Efficient: 1.5T or 2.0L Engine?

[RyderLee]

1.5T models are more fuel-efficient than 2.0L models. From the perspective of fuel consumption, turbocharged engines (denoted by 'T') increase air intake, which correspondingly requires more fuel injection compared to naturally aspirated engines of the same displacement like the 1.5L. However, gasoline combustion is more complete, resulting in lower fuel consumption than the 2.0L engine. Therefore, the 1.5T is more fuel-efficient than the 2.0L. Differences between 1.5T and 2.0L engines: Different engines: 'T' stands for turbocharged engine, while '1.5' indicates the displacement. Thus, 1.5T refers to a 1.5-liter turbocharged engine. On the other hand, 2.0L denotes a 2.0-liter naturally aspirated engine. Performance differences: The 1.5T engine increases air intake, providing more power compared to a 1.5L engine of the same displacement. However, during the initial acceleration phase, the vehicle relies solely on the engine's natural displacement output, so the turbocharger's power boost is not immediately evident. Generally, the turbocharger kicks in when the engine reaches around 1,500 RPM, at which point the vehicle's enhanced power becomes noticeable. The 2.0L engine relies entirely on its natural displacement for power output, generating vehicle propulsion through normal gasoline combustion. This results in less wear and tear on the engine, lower maintenance costs, and a relatively longer lifespan. However, the power output is comparatively weaker.