Fuel Mileage Diesel

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Fuel Efficiency: Mythbusters Style

Mythbusters has been running for almost a decade now, and they have already tested a lot of myths, suggested by fans and other rumors circulating the World Wide Web. The Mythbusters team is made up of special effects experts Adam Savage and Jamie Hyneman, along with the build team consisting of Kari Byron, Grant Imahara and Tory Belleci. With the steady rise of gas and fuel prices, they launched a series of myths to help make your car fuel efficient.

On their second season, they tested whether turning on the air conditioning inside a car would be more fuel efficient than lowering the windows when traveling. At face value, both situations are not ideal in giving you sufficient fuel efficiency. By just turning the A/C on, it affects your fuel economy by at least 10%, on the other hand, rolling down your windows lets drag enter inside your car thus dwindles a cars fuel economy. Ironically the only way to combat drag is to accelerate your car and in doing so you are decreasing your fuel economy further. The Mythbusters team tried this myth by driving a vehicle in to two separate speeds, 89kph and 72 kph. In a controlled environment, the vehicle was subjected to turn the A/C on and to lower the windows down. Results have shown that its more fuel efficient to travel with your windows down in lower speeds and turning the A/C on when traveling faster. Fast forward to their third season, they debated whether driving a pick-up truck with its tailgate down is more fuel efficient than it is up. In fact, it is better to close your tailgate rather than putting it down because it allows drag to circulate at the back of your vehicle while putting it up creates this vortex of air flow over your vehicle that makes it more fuel efficient.

They also have a collection of other myths like the dimpled car, in which they covered a car in clay and pressed dimples into it similar to a golf ball. The myth was centered on studies that have shown dimpled golf balls to travel farther compared to their counterparts The results were astonishing as fuel mileage improved from 26 miles per gallon to 29 miles on a single gallon. Other myths include not taking any left turns, instead of driving normally, which is to wait for your turn go left. Its said that idling your vehicle consumes more gas than taking three right turns. Despite having a longer distance and is time consuming, the right turn route posted a 3% fuel efficiency improvement. Lastly, one of their famous myths is the Great Gas Conspiracy, which is believed that gas companies are in cahoots with vehicle manufacturers to produce fuel inefficient cars. With this, they tested products marketed to make your car fuel efficient. These included carburetors and a water fuel cell. All failed to make your car fuel efficient, some even made it worse. Surprisingly, one of the products used on this segment was cooking oil. It was used as an alternative to fuel and it made the engine run but was deemed to be inefficient.

Like any another resource, fuel might also run out in the future and we might have to find a suitable alternative or save on gas to prolong our resources.

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Source: http://www.articlesnatch.com/Article/Fuel-Efficiency–Mythbusters-Style/2188549

Frequently Asked Questions

  1. QUESTION:
    Does Diesel fuel get better gas mileage than regular fuel?
    I’ve heard diesel fuel gets better gas mileage than regular fuel. Is that true?

    • ANSWER:
      The more correct question would be do diesel ENGINES get better gas mileage than gasoline ENGINES ( as you cannot put diesel fuel into a gasoline engine and vice versa )?

      The answer though is yes. Diesel engines usually get somewhere between 25-40% better fuel economy compared to a gasoline engine of the same displacement.

  2. QUESTION:
    F-250 Diesel Fuel Mileage Issues – Need Feedback?
    I have a 2004 F-250 Diesel 4-Door Super Cab. For the first 6 months after we purchased it, the vehicle was getting 18mpg. Then all of a sudden the fuel mileage dropped to around 13mpg. I have gone back to the Dealer and have talked to Ford, but no one has been able to satisfactorily answer my question or provide me w/ a solution.

    They just tell me that since Ford is not required to put the mileage rating on the sticker, there is no guarantee of a mileage range so basically it’s tough luck.

    I am trying to find out if anyone else has experienced this and if so, have they found a solution? I have tried a SuperChips re-programmer and it helped a little, but it still is not near what it was initially.
    To answer some of the questions, I’ve had Ford check the engine thoroughly and they say all systems are working properly (both times). I change all fluids and filters according to the maintenance schedule, and no one but a Ford Dealer has touched the vehicle. Also, I am using a chip programmer, so the factory chip is still in the vehicle. I can program it for 3 different scenarios: Economy, Towing and Performance. Of course I use Economy most of the time.

    • ANSWER:
      The oil companies have change to the low sulfer fuel and its effecting the mileage I went thu it try running a bottle of marvel mystery oil when filling up and see if that change the mileage.
      Some people are running snowmachine two cycle oil and its working for them.
      Another problem which you may see is small fuel leaks which there is not much you can do about it, the new fuel is thinner and in some of the older engines it a real issue.
      On the brighter side come winter it will start alot easeir and the is no more winter fuel, I had no problem last winter here in Alaska.

  3. QUESTION:
    What’s the city fuel mileage for a 99-02 diesel truck?
    99-02 diesel supercab 4×4 3/4 or 1 ton single or dual rear wheels—any brand.
    Not looking for a “my truck is better than yours” answer. I’m in the market to buy one and would like to know real world fuel milage for these trucks. I’ll be driving less than 20 miles round trip to work daily…need city mileage not highway mileage.

    Please be honest, thank you.

    • ANSWER:
      Cummins will get the better mileage.

  4. QUESTION:
    2005 FORD F-350 king rancher, 4X4, diesel fuel mileage ?
    what would a 2005 ford f-350 king rancher, 4×4, dually, diesel get for fuel mileage

    • ANSWER:
      expect anywhere from 15-22
      depends on conditions, where you get your diesel, etc.

  5. QUESTION:
    Which gets better fuel mileage, diesel or gas?

    • ANSWER:
      Diesel. I’ve seen diesel cars getting over 54 mpg. Try doing that with gasoline!


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