With the fuel price increase, and its negative effect on the environment, it's very important to think seriously in ways to save gas. There is no doubt that the car condition and the way you drive it impacts on the amount of fuel consumed. So here's some tips that not only will save your fuel's money but also will keep your car save by preserving it's integrally and increases the efficiency of the engine in particular: 1- Check your air filter: Studies have found that nearly one in every four cars on the road needs an air filter replacement. Dirty air filters can reduce a cars gas mileage by 10%. 2- Check your tire alignment: Poor alignment not only causes tires to wear out more quickly, but also forces your engine to work harder. Align your car's tires and save up to 10%. 3- Tighten your gas cap: Believe it or not, a loose gas cap can cost you money due to amputation of gasoline from your tank. According to one report. This could rob you of 30 gallons of gas a year. 4- Keep your tires inflated: More than one-quarter of vehicles are driving on deflated tires. The average under-inflation of 7.5 pounds causes a loss of 3% in fuel efficiency. 5- Slow Down: For every 5 mph, you reduce highway speed. You can reduce fuel consumption by 7%.This is especially true for vehicles that have largo. Frontal surfaces such as vans and trucks. 6- Drive smoothly: Amid Jack-rebut starts and you will improve your fuel economy, In particular, feathering the gas pedal when you leave stop signs and lights can save you to 10% mileage. 7- Turn off your engine when you stop for more than 30 sec: This Tip is very important, in the crowded places that contain many stop signs and traffic lights, as it's a known fact that the car consumes more fuel in the waiting time, Another advice that most cars don't need to be warmed before it starts, this simply waste gas so turn on your vehicle when you are ready to go. 8- Reduce your vehicle weight: Just like your body, the more weight you are the more fuel you consume to move. Therefore you need to dispose of any overload wither it’s inside the vehicle or in the rear trunk. Ironically that whenever the vehicle is overloaded the lazy the driver will be to remove it. just do not be that kind of driver. "Every 100 more kilograms in the car trunk reduce 0.5 kilometer of the distance the car move with 1 liter of gas, it became worse if the weight is on the car net". 9- Reduced the number of trips: Did you know that gasoline consumption to be significant when the vehicle is parked for hours? Numeral is cold, and this will consume more fuel to do the regular work. If you're looking for the perfect solution, my advice is to bring all the daily tasks in one trip that will save a lot of fuel and time also. 10- Roll down the windows, and close the sunroof: This point is not a problem when driving in the city, but when outside the city or on the highway where the vehicle speed increases, the form of your vehicle becomes very important. The so-called car designers photodynamic therapy airbag (white vertical siding) and that play an important role in reducing the impact of air resistance (drag) in order to increase the efficiency of the vehicle. Anything issued wind noise when driving at high speed means that your vehicle burn more fuel. You cannot do much to improve the design of the vehicle, but you can avoid making things worse by closing the windows and sunroof (if you have one). It is better to use the air vents, or air conditioner if the weather is warm.