What Is The Best Way To Save On Fuel Consumption On A Vehicle?

Brake the right way
A car consumes most gas as it accelerates. It’s a simply law of physics (force equals mass times acceleration). A moving car doesn’t require much gasoline to keep moving (due to the inherent inertia). In real life this means, in order to improve your mileage you need to keep the ride smooth.
Turn off your air condition
This tip might be somewhat impractical in some areas. I would never dare to switch off the air condition of my car in Arizona in the Summer. However I also know that the compressor for the air conditioner loads the motor of my car more, which will reduce my fuel economy. I try not to use the air conditioner if I don’t have to.
Park your car in the shade if you can, so you won’t have to keep the AC working as hard when you go somewhere
Reduce weight
Coming back to the force equals mass times acceleration. We already established that one shouldn’t accelerate as much. You can also try to reduce the mass of your car by emptying out the trunk and removing heavy items that you don’t need (keep your spare tire and car lift, but get rid of the gardening equipment).
Turn your car off
When you turn on a car, it uses a bit of gas. When the car is idling, it uses a fixed amount of gas over a period of time (especially with the AC on).
In most scenarios (depending on the car), the energy balance will be positive if you turn off your car for more then 20 seconds.
That means you can save gas if you turn off you car while waiting at long traffic light sequences, railroad crossings or while your better half pulls money from the ATM. Any time you can foresee that you will not be moving for more then 30s or 1minute you should turn off the engine to help your vacation budget
Close your windows
Believe it or not, but opening your windows will increase the turbulences and eventually cost you fuel. If you can, use only the ventilation system of your car. I cannot really gauge this against using the air conditioner. I believe that opening your windows at low speeds and using the air conditioner at high speeds gives you better fuel economy.
Pick a better route
Avoid heavy traffic and lots of traffic lights. The shortest route is not always the most fuel efficient if you have to stop a lot.
Pump it up
Inflate your tires to the specified level (I usually go about 0.2 PSI above). This will reduce the contact area of your tire to the road and therefore reduce the friction. It will help you to get a slightly improved gas mileage.
If you don’t need Snow Tires or Chains, remove them. Don’t drive around all summer with Snow Tires. They are softer and have a deeper profile which will increase friction.
Use the correct grade of motor oil
The grade of the oil pretty much tells us about the viscosity. If you use the wrong grade, you may increase the friction in your engine. It gets hotter and uses more gas.
Air filters
Replace your air filter when you need to, or your mix won’t be right. However don’t replace it every time the mechanics tell you to (they make money with it). Try to find out how often you need a new filter.

Assuming you have a very economial vehicle to begin with, there are simple things to do. Don’t carry more stuff in your vehicle than you actually need. The lighter the vehicle the better. Make sure your tires are properly inflated. The higher the pressure in a tire causes less surface area of the tire to be on the road way. I run mine 3-5 lbs over the recommended PSI rating on the tire, but I only do that with good, name brand tires. I wouldnt try it with wal-mart specials. Make sure your car is aligned properly, a misaligned car causes more drag. Make sure your brakes are in proper working order, again, dragging brakes creates drag. Ensure your cars filters, plugs, wires, belts, etc are in tip top shape. Dont buy cheap gas, there are fuels that dont burn as well as others. You may pay a little more at the pump, but the delay in maintenance intervals will pay off because dirty or non burning fuels leave deposits on air passages not allowing for the most efficient burn.
Your driving habits are also a good thing to work on. If you are city driving, look ahead to the next light, if its red, no reason to haul azz to it just to wait for it. If the next light is green, is the crosswalk light flashing red? If so, its gonna turn your light red soon, 13 flashes is the norm before the light turns, count them, if a normal acceleration wont get you through the light, then accelerate easily and coast to the next light. Its all simple stuff.

1. Make sure the car is tuned up and make sure you have no leaks in the system. Make sure the oil/air filters are clean.
2. Make sure you’re not hauling more than you need. A lighter car uses up less gas. Look in the trunk and make sure you empty anything you don’t need to be in there.
3. If it’s interstate, use cruise control when you can or make sure you keep your speed as even as possible.
4. Try not to drive with the windows open, this increases drag.
5. If you have to drive through congested area, see if you can come in a bit late or earlier to avoid the backups. You don’t want to be sitting in one place using fuel.
6. Bring your lunch to work… this saves gas from going out, usually you can waste a lot of gas on those little trips and it will save money. If you don’t use the car, you won’t use the gas.

Like stated before, ensure tire pressure is what your manufacturer suggests, tune up including new spark plugs (what your car manufacturer suggests again) and wires, also what worked great for me was a K&N Lifetime air filter. You have to clean it yourself (or professionally) but it boosts your MPG a bit and does a noticeable difference to your car’s power when you accelerate. Also, run a fuel system cleaner through your car every other month or so, sometimes monthly depending on how often you drive.

Make sure your tires are properly inflated and check them once a week.
Get a tune up and keep up with oil changes and etc…..
Not using ac in on hot days…and keeping your windows up..this will help..with aerodynamics of your vehicle.
do not drive aggressively that wastes gas a lot as well as speeding..or even driving to slow…( low rpm and higher speed will give best mileage for gas usage)
if close to a store or restaurant..walk to get to them for lunch or breaks.
don’t use premium gas..that tends to only help vehicles with engines made for it..standard vehicles run fine on regular gas
try to drive as much freeway as you can as this will maximize your mileage. stop and go is hard on your vehicle and lowers your mileage.