There is no end in sight to high gas prices. A vehicle's fuel economy is now a major factor in a vehicle's affordability and total cost of ownership. Whether your vehicle is new or used, there are simple steps you can take to improve gas mileage and increase mpg.

Driving style has a huge influence on gas mileage. Accelerating results in much lower gas mileage than cruising at a constant speed, and quick acceleration results in even worse mileage. If you accelerate slowly to get to your desired speed, then you can improve gas mileage without reducing your cruising speed. In addition, you should use the cruise control feature whenever possible because it will keep your speed constant over time.

The next set of tips focuses on lifestyle. Idling the engine for long periods wastes fuel while the vehicle goes nowhere. Therefore, avoid congested stop-and-go driving conditions. If necessary, change your route or the time of day you travel. When possible, combine multiple trips around town into a single trip. Carpooling to work and home while sharing the cost of the gas saves gas, and divides the expense of the fuel.

The final set of tips for improving gas mileage focuses on car maintenance and repair. For maximum fuel efficiency, tires should be inflated up to the maximum pressure displayed on the tire's sidewall. However, over-inflation will lead to uneven wear and decreased tire life.

Consult your vehicle's owners manual and follow the advised replacement schedule for air and fuel filters and spark plugs. The manual will also contain a schedule for inspection and adjustment of the exhaust, engine timing and valve clearances. It's important to follow these recommendations as they will extend the life of the vehicle, reduce the risk of break down and improve your gas mileage.

Using regular gasoline in lieu of premium instead will not improve your gas mileage. It will, however, help enhance your mile-per-dollar efficiency by effectively reducing your cost of gas. When you detect pinging problems, which is usually associated with older as well as specialized high performance engines, then it might be useful to switch to premium gasoline. There is no discernible benefit to be derived from using high octane and other expensive gasoline additives. Unless specifically recommended by the car manufacturer in the user's manual, avoid using premium gasoline.