Does Car AC Use Gas?

Air Conditioning Button


Yes, your car’s AC does use gas while you drive. However, in some cases, using your AC may actually be more efficient driving with the windows down! Like most of the electrical systems in your vehicle, your air conditioning or climate control systems run by drawing power from the alternator; the alternator itself generates electrical power using gasoline.

How Car AC Works 

By powering your alternator, gasoline allows your air conditioning system to cool you down as you drive through Williamstown and Sicklerville. Still, if you’re really curious about how your car’s AC system works, it’s important to note that all of the following parts play a role:

  • The compressor turns your (gaseous) refrigerant into a liquid. This liquid runs from the compressor to the condenser.
  • The condenser extracts heat from the fluid and pushes it to its next destination.
  • The expansion valve or the orifice tube returns the cooled refrigerant to its liquid state.
  • The receiver or dryer removes any excess moisture from the now-gaseous refrigerant. 
  • The evaporator pulls heat from the air just as it is about to pass through your vents! This heat gets transferred to the refrigerant, which goes back to cycle through the process once again.

So, in sum, your car AC cycles refrigerant through several components in order to pull hot air out of the system and deliver cold air to your cabin! If you’d like to learn more about how your vehicle works, feel free to check out our other service tips and tricks.

Can Using Car AC Be Fuel-Efficient? 

Modern vehicles are designed to be as aerodynamic as possible, and it’s not hard to see why. The more aerodynamic a vehicle, the less power—and the less gasoline—that is needed to send it flying down the highways of Turnersville and Mullica Hill. So, if you’re thinking about turning the AC off and rolling down your windows to save gasoline, it might be a good idea to think again! The gasoline costs of your AC system may be lower than gasoline costs of making your vehicle less aerodynamic.

Other Ways to Improve Fuel Economy

So, turning off your AC won’t necessarily help you save on gas. However, there are plenty of things that concerned drivers can do to improve their fuel economy on local roads:

  1. Reduce drag by inflating your tires to the proper pressure
  2. Pack light to reduce your vehicle’s total weight
  3. Use clean, synthetic oils to improve the performance of your engine
  4. Keep your RPMs low by staying in higher gears for as long as possible.
  5. Reduce the speed at which you accelerate, and coast to a stop whenever possible.

If you think that your vehicle is consuming more gasoline than it should be, it might be a good idea to schedule service and let us take a closer look.

Cadillac Of Turnersville is Here to Help!

If you’re looking for more ways to save on vehicle operating costs, all you need to do is take advantage of our current service specials! We’re here to help, and we want you to enjoy your Cadillac at its very best.

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