How do I improve fuel efficiency on my Toyota Highlander?

I recently purchased a Toyota Highlander and I've noticed that I'm not getting the advertised fuel efficiency. What can I do to improve my gas mileage?

One way to improve fuel efficiency on your Highlander is to make sure you are properly inflating your tires. Under-inflated tires can decrease gas mileage.

Another tip is to avoid idling your car for extended periods of time. This can waste gas and decrease your overall fuel efficiency.

You can also try using a fuel additive or switching to a higher grade of gasoline to see if it improves your gas mileage. However, be sure to consult your owner's manual before using any additives.