Fuel-Saving Tips By Ann Job for MSN.com No matter where you live and what you drive, you can maximize every gallon of fuel. Here's how: Regular Servicing Is Important Keep your vehicle well maintained with regular servicing to keep it operating at peak efficiency. An inefficient enginewith fouled spark plugs, for examplewon't make optimum use of fuel. Be sure the air filter and the fuel filter are clean. Put in new ones if they're not. A new oxygen sensor alone can improve gas mileage by as much as 15 percent, according to AutoZone, a car parts store. Don't forget little things like the air in your tires. Having tires inflated to the maximum recommended pressure can improve gas mileage by as much as 6 percent, while periodic wheel alignments can help improve fuel economy up to 10 percent, according to the U.S. Environmental Protection Agency. Clean out that trunk, cargo area or pickup bed. Take out unneeded items that only add weight to your vehicle. Extra weight decreases gas mileage. According to AutoZone, every 200 pounds of unnecessary weight shaves one mile per gallon off your fuel mileage. Be a Different Driver Drive Smart Plan Ahead Weather Effects Other Modes of Transport Watch for New, High-Tech Solutions Other Costs Affected An Eye to the Future http://autos.msn.com/advice/article.aspx?contentid=40189094src=LP pickups Scroll down to heading "MONEY MATTERS" - first article listed.