How can I improve fuel efficiency in my Ford Focus?

I want to decrease my gas costs and reduce emissions. What changes should I make to my Ford Focus to achieve better fuel efficiency?

First, make sure your tires are properly inflated. This can improve fuel efficiency by up to 3%. Second, avoid idling for extended periods of time and try to consolidate errands to reduce the amount of trips you take. Finally, consider using a fuel additive or switching to a more fuel efficient oil.

One easy way to improve fuel efficiency is to use cruise control when driving on the highway. This helps maintain a consistent speed, which can save fuel. You should also avoid carrying excess weight in your car and make sure to regularly service your vehicle.