With the skyrocketing price of gasoline, I am sure that you are looking for ways to make your vehicle more fuel efficient than it is today.  You can use performance parts like cold air intake if you want to but they will cost you at least a few bucks and you would have to pay for them to be fitted to your car.

If you don't want to take that road, you might like to try out these tips from bankrate.com.  I'd list some of them down for you here:

First, try using the lowest grade of gasoline for your vehicle.  If your vehicle's engine is not designed to run just on premium fuel, you can use just regular gasoline.  Using premium fuel which are very expensive will not make your vehicle more fuel efficient but it will be very heavy on your pocket.

Next, do not top off.  When filling your gas tank, the automatic nozzle will usually shut off if the gas tank is already full.  But some think that they can add more to the gas tank even if the nozzle shuts off.  Do not try to do this as the fuel that you will add will just be wasted as it will just seep out of your tank.  There is a reason of course why gas pumps clicks off when the tank is full.

Also, it is very easy to tighten up the gas cap.  But forgetting to do so would mean a lot of fuel being wasted. Since gasoline is volatile, it would easily escape through a loose gas cap.

These are just easy steps to save on gas. And you would find other tips such as this at bankrate.com.