If your putting off that family vacation due to the price of gas, don't, use these tips to outsmart those high gas prices! The key to saving gas is to keep your car in good shape! Simple things like checking tire pressure and changing the oil and filter in your car, can make a huge difference on your gas mileage. In fact, clean air filters can get up to 14 percent better gas mileage. Be sure and use the grade of oil that is recommended for your car, this will add efficiency as well.