This post is not meant for anyone who drives a Rolls Royce or Bentley Continental GT.
If you drive such cars, I believe fueling your car should be the least of your worries.
Does running the air conditioner increase fuel consumption of your car?
Yes, yes and yes! It does by 5-10%.
Why on earth will this increase the fuel consumption and make the car thirstier?
Let’s break it down:
AC requires power to run the compressor. This power comes from the crankshaft which is turned by burning fuel. There is no free lunch when it comes to thermodynamics… you pay for it. Fuel is the currency.
Some car user manuals will recommend you use your AC on the highway because it reduces aerodynamic drag.
If you want want to save every drop of fuel, these are the things you should do.
- Windows up
- AC off
- Sunroof open.