windows down or a/c

Is it more fuel efficient to drive with the windows rolled down, or with the air conditioner on?

  • Opening the windows increases drag, and slows the car down — so it needs more fuel to run.
  • Running the A/C puts an extra load on the engine — so it needs more fuel to run.


Check out the “Windows down vs A/C” results from Mythbusters

a/c recharge

A vehicle without cool a/c can be an uncomfortable ride. A properly working air conditioner keeps you and everyone else in the vehicle comfortable and cool all the way to your destination. Plus your kids and pets will thank you!

Your vehicle’s a/c system cools and removes moisture from the air inside of your vehicle using three main components: the compressor, the condenser and the evaporator.

The compressor, driven by the vehicle’s drive belt, pumps the refrigerant through the a/c system. Inside, the refrigerant is exposed to high and low pressure, forcing it to change states between gas and liquid in order to capture and then release heat. As a gas, the refrigerant passes through the evaporator, capturing heat. The refrigerant then moves through the air conditioning lines and into the condenser, where the refrigerant cools as heat is released outside of the passenger compartment, and the refrigerant returns to a liquid.

For the system to work optimally, the system must have the proper amount of refrigerant and be free of contaminants.

L & T Auto Repair visually inspects the air conditioning compressor drive belt, serpentine belt and all accessible components for cracks, leaks and damage. Then we check the operation of the air conditioning compressor. If no leaks or damage are found, we evacuate the refrigerant from the system, vacuum test and recharge the air conditioning system using the appropriate refrigerant according to your vehicle manufacturer’s specification.

Call us today 269-858-3008 and drive nice and cool this summer!