We’re all familiar with the price fluctuations with gas. Discover how to get great gas mileage, save money, and pollute less through the art of hypermiling—which is a driving technique that enables a car to get the very best gas mileage possible. Henry Owen shares his ideas and strategies on fuel-efficient driving with dozens of great tips that will help you change your driving habits. Included is advice on general and highway driving, trip planning, car set-up, and when to run air-conditioning.  False fuel-efficiency myths are also debunked by experts. Following some or all of the suggestions in this guide will not only save you money but lessen your impact on the environment and make driving safer and more fun.