This is a really informative video, and well worth the time to watch it.

Fun fact: “For every five miles you go over 60 mph you add the equivalent of 10 cents more per gallon you will pay at the pump.”

The following I’ve heard before but none-the-less important. Check your tire pressure when the tires are cold (before you start your trip). Always keep them inflated at the factory recommended level. Don’t run the air conditioning unless you really need it. Use the cruise control as much as possible. It will keep the engine at a smooth level and consume less gas.