Tag: driving with the windows down

windows down vs. air conditioning

There are still conflicting opinions on whether it’s more efficient to drive with the windows down or the air conditioning on. While some studies say it’s universally better to leave the windows down, others have concluded that AC uses less fuel when you’re driving at speeds above 45 miles per hour. Is there one true answer to the windows down vs. air conditioning debate?

Short answer: no. There is still disagreement. Business Insider wrote an article that showed fuel consumption at 31 mph, 50 mph, and 68 mph, and at all three speeds the air conditioning used more fuel than rolling the windows down. HowStuffWorks, on the other hand, maintains that the exponentially increased drag caused by rolling the windows down at high speeds uses more fuel than the AC.

The good news about the lack of end to the debate, though, is that the higher your speed is, the smaller the difference is between fuel use with the AC on vs. fuel use with the windows rolled down. So basically, you can do whatever you like best, and it probably won’t have much of an effect on your fuel use. At lower speeds, though, you’ll use a lot more fuel with the AC on than with the windows rolled down, so keep that in mind.

For more tips about saving fuel or best practices when driving your car, stop by and see our service team at Don Robinson Mitsubishi!