TURN OFF THE A/C

Turn off your air condition

3. This tip might be somewhat impractical in some areas. I would never dare to switch off the air condition of my car in Florida in the Summer. However I also know that the compressor for the air conditioner loads the motor of my car more, which will reduce my fuel economy. I try not to use the air conditioner if I don't have to.
Park your car in the shade if you can, so you won't have to keep the AC working as hard when you go somewhere.
Roll down the windows just a tiny bit, so the air can circulate through your car while you are parked (might not be a good idea in areas with a high theft rate).
Turn off the AC 5 minutes before you reach your destination and don't keep it working until the last second.