Does the Air Conditioning Fan Speed Affect Fuel Consumption?

[Rodrigues]

Adjusting only the fan speed without changing the air conditioning temperature does not affect fuel consumption, and the resulting fuel usage is negligible. Below is relevant information about fuel consumption: 1. Fuel consumption per 100 kilometers: This refers to the amount of fuel a vehicle consumes when traveling 100 kilometers on the road at a certain speed. It is a theoretical indicator for the vehicle. Manufacturers measure this value in an objective environment using a dynamometer installed on the vehicle's chassis, converting it into speed parameters, then calculating the theoretical experimental fuel consumption per 100 kilometers for the model at specified speeds. 2. Road condition fuel consumption: This is a fuel consumption indicator calculated based on repeated tests where the vehicle is driven on specified roads at prescribed speeds and times, also known as multi-condition road cycle fuel consumption. The standard specifies that each cycle includes various driving conditions, recording parameters such as gear shift timing, parking duration, driving speed, acceleration, braking, and deceleration for each cycle. The measured values using this method are closer to actual conditions.