When you have tires that aren't correctly inflated to their suggested PSI, your vehicle will get a reduced gas mileage.

If you are carrying extra weight in your trunk or passenger seats, it will require a lot more fuel to drive your vehicle. Take anything out of your vehicle that you don't need.

Mileage Maxx Mileage Booster is a year round fuel conditioner designed to improve the performance of all engines including cars, trucks, RV's, boats, trains, construction equipment, buses, generators, and motorcycles. It is proven to increase fuel economy by 15% or more and reduce toxic emissions up to 30%. Mileage Maxx Mileage Booster is a "green" product that helps operators comply with clean air laws and reduce emissions by promoting a cleaner fuel burn to reduce smoking, soot, and vapor exhaust. The end result is increased fuel economy and performance, lower maintenance costs, and reduced harmful toxic exhaust emissions.

Reducing your speed from 65 mph to 55 mph can increase your gas mileage by up to 17%.

Its fair to say that actually not owning a car and using the omnipresent car hire dealers is the best idea. Most people don't need a car the whole time (city, not country). Plus! Think of the benefits to the environment!

Personally I think that owning a van is not necessarily the best thing to do. Use van hire instead - use only when you need. Perfect

A dirty air filter will greatly decrease your gas mileage. Replacing your air filter is one of the best things you can do to increase your gas mileage.

In the ever changing Financially Changing world its worth deciding whether or not its actually necessary to own a vehicle.