Spend less Gas - World's BEST modified BMW

Use only high-octane gasoline (the expensive one at the pump) if your engine is pinging. Pinging is a rattling-type noise from the engine, mostly heard on acceleration and when driving uphill.

Spend less on gas

Step #6

Keep all the tires properly inflated. The recommended tire pressure is listed in the vehicle's manual, stamped on the side of the tire, and often on a sticker on the driver's-side doorjamb. When in doubt, 32 pounds per square inch (psi) is a good average until other sources can be consulted. Low air pressure will cause bad gas mileage.

Spend less on gas

Step #7

Follow a maintenance schedule. Most cars need a tune-up every year or 30,000 miles, whichever comes first. Older cars need to be serviced more frequently. A car in need of a tune-up may exhibit poor gas mileage as a symptom.

Spend less on gas

Step #8

Change the air filter every 15,000 miles.

Spend less on gas

Step #9

Drive just 55 mph on the highway if traffic allows you to do this safely. The faster you drive, the more gas your car will use.

Spend less on gas

Step #10

Shut off the air conditioner when you don't absolutely need it.

Spend less on gas

Step #11

Keep the clutch properly adjusted. A slipping clutch uses extra fuel.

Source: ehow

Tips:

Pay attention to how much gasoline your car is using. Some problems manifest only as poor gas mileage without any noticeable drivability symptoms. See your mechanic if you notice any big changes in gas mileage.

Tips from eHow Users:

Improve value for money psycholist

Look around for the cheapest gas before buying, don't just pull in at the first place you see - prices vary, often drastically from place to place.
Buying gas on a cold day (or in the early morning) will also give slightly better value for money as it is sold by volume and it becomes more dense the colder it gets. Buy a bicycle and use that for short trips (it is the most efficient form of transport known to man).

Coefficient of Resistance by eHow Friend
At high speeds, the coefficient of resistance significantly affects the gas mileage. High profiled vehicles such as rigs or those with flat backs (Element. Scion, SUVs) create a lot of drag particularly at high speeds. To reduce drag during long distance driving, I slightly open the back window of the cab in my P/U truck. My gas mileage improve noticeably. Airplanes are streamlined with this concept in mind. The same physical principle applies to automobiles.

"Drive" is for driving! Matt W.

Whenever possible, such as at red lights, use Neutral. With automatic transmissions, the engine is still working to push the car while stopped in Drive. Also, don't use the engine as a brake.

Small engine, less fuel eHow Friend

A small engine uses less fuel.
I know it's nice to drive a V8, but its efficiency is bad (1 liter on 4 km) a 4 cylinder (some 1 liter on 24 km) will safe you lots of money and the environment.

Stay off your brake-pedal eHow Friend

Always look far ahead of you and keep a safe distance from the car in front of you. This way, when you stop you can slow down and spend less time accelerating to pick up speed.

Accelaration & A/C the penguin

While rabbit starts are gas guzzlers, slow accelaration may also use more gas than necessary. Don't be a granny, either. Use a smoothe foot on the pedal.

Full tank Jim

The only difference in mileage between having your tank full or half full is that you're carrying more weight when it's full, so will get worse mileage. However, a full tank does prevent water condensation; water is not good for the engine.

Don't overfill your gas tank! eHow Friend

Gas is stored in underground tanks at 60 degrees fahrenheit and is pumped cold into your tank. The road reflects heat and a full tank will overflow. Don't fill past the second clickoff. Driving doesn't use up gas as fast as it expands.

Use overdrive eHow Friend

Use of overdrive, even in the city, gets me at least 60 more miles to a tank. I use it always unless roads are slippery.

Gas economy tips eHow Friend

Keep your car clean. Sounds simple, and it is. The more bugs and bird droppings there are, there the more air resistance. So wash your car regularly and save some gas. Besides, your car will look nice, too.

Walk for the short trips eHow Friend

It seems obvious that walking will save you gas money, but it's important to remember that your car works harder and uses more gasoline starting and stopping during short jaunts than if you left it sleeping in the driveway.

Acceleration is your enemy eHow Friend

Slow and steady wins the race. Don't use a lead foot when driving long or short distances. Accelerate slowly to reach the speed limit.

Shopping for gas pays off Bill Z.

Anticipate when you'll need gas. Watch the posted prices and look for one-day specials. Reset your trip odometer when you fill up and divide by the gallons to get your mileage. This is an early warning for a tune-up.

Why accelerate? eHow Friend

If you know you'll be reaching a red light, try not to step on the accelerator anymore. Let it glide until you stop. Making this a habit will save you a big percentage in gas mileage.

WARMING UP ENGINE eHow Friend

One Of the best things you can do for your car in a cold day is to warm the engine when starting up, not doing so will greatly reduce engin life,

Keep Gas Cap Tight Chickinfrog

Studies show that fuel can evaporate from your tank if the cap is either loose or non-existent. Close the gas cap until you hear the ratcheting noise. If you've lost your gas cap (most cars now tether the caps) purchase a new one.

Put your windows up

When driving, try to keep all the windows in the car up. Not doing so creates more drag on your car and less gas mileage. Don't turn on your air conditioner, it uses more gas too.

Various car sizes Red_Wing_57

Use the AC only if you can't bear the heat. And even then, only at highway speeds. When driving around town or under 40 MPH, it's perfectly fine to roll the windows all the way down to keep cool. At such low speeds, wind drag will have virtually no effect on fuel economy.

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