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  1. Join Date
    Oct 2002
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    29,354
    #1
    Click the link below:

    Tony's Guide to Fuel Saving Gadgets


  2. Join Date
    Oct 2002
    Posts
    3,883
    #2
    as per Tony
    One more thing to remember is that thousands of scientists and engineers all over the world have been working on car engines for decades. The physics of engines is pretty well known now and you have to ask yourself if some amazing new breakthrough, only involving bolting something to the outside of your engine, would really have escaped the car industry's notice all that time.

  3. Join Date
    Mar 2005
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    3
    #3
    Your line of reasoning reminds me of an official of the patent office who remarked that everything that can be invented has been invented. That was late 1800's.

    Thousands of doctors and scientists have been working on treating diseases for centuries - we still have no cure for lots of diseases.

    "The physics of engines is pretty well known..." Really? What is your basis for saying that? You might want to try reading textbooks on internal combustion engines to see how much people understand about engines. Better still, try reading papers from SAE to have a feel how much is known.

    Then tell me your story.

  4. Join Date
    Oct 2002
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    29,354
    #4
    Quote Originally Posted by Basurero
    Your line of reasoning reminds me of an official of the patent office who remarked that everything that can be invented has been invented. That was late 1800's.

    Thousands of doctors and scientists have been working on treating diseases for centuries - we still have no cure for lots of diseases.

    "The physics of engines is pretty well known..." Really? What is your basis for saying that? You might want to try reading textbooks on internal combustion engines to see how much people understand about engines. Better still, try reading papers from SAE to have a feel how much is known.

    Then tell me your story.
    Actually your analogy is flawed. Comparing medicine and science of engines is like comparing the study of the oceans and a glass aquarium.

    In this thread (or the khaos thread), the point of discussion is the emissions of a typical internal combusion engine, especially of the cars already on the road. We are NOT discussing possible engine developments.

    Why? Simply because the point of discussion is the effectiveness of those fuel saving devices on engine already on the road.

  5. Join Date
    Aug 2003
    Posts
    125
    #5
    Hi all. I made a simple excel sheet which calculates the return of investment of a given fuel saving application. You may check it at

    http://www2.mozcom.com/~jtdc/fuelsave.xls

    It might be useful.

  6. Join Date
    Jul 2005
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    83
    #6
    principle of breaking fuel particles to smaller units will have a better fuel atomization then leads to proper and efficient combustion....less fuel consumption. old and worn out engines are excluded

  7. Join Date
    Oct 2002
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    29,354
    #7
    Quote Originally Posted by jeegoogs
    principle of breaking fuel particles to smaller units will have a better fuel atomization then leads to proper and efficient combustion....less fuel consumption.
    thats why its important to have clean fuel injectors.

  8. Join Date
    Jul 2005
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    83
    #8
    yup...

  9. Join Date
    Aug 2004
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    6,234
    #9
    Article on Popular Mechanics: http://www.popularmechanics.com/auto...y/1802932.html

    Doesn't include Khaos though. I thought it was already very popular in the US? ;)

  10. Join Date
    Aug 2004
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    22,702
    #10
    Because "Khaos" style fuel savers were banned in the US because of NOx emissions. There was a successful court case and recall on one of these before. While none of these current "fuel savers" works, they don't cause pollution, and can't be banned completely... and if they claim a "ZERO percent to fiteen percent" change in consumption, you can't get them for false advertising, either.

    Ang pagbalik ng comeback...

  11. Join Date
    Oct 2002
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    29,354
    #11
    EPA - Gas Saving and Emission Reduction Devices Evaluation

    http://www.epa.gov/otaq/consumer/reports.htm

  12. Join Date
    Sep 2005
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    29
    #12
    so is khaos good or bad?

  13. Join Date
    Oct 2002
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    29,354
    #13
    Quote Originally Posted by fellouie
    so is khaos good or bad?
    in one word: bad

  14. Join Date
    Dec 2004
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    48
    #14
    what about those engine oil additives . me nakita ako ni d demonstrate sa DIY greenhills UNIQ ang brand and it seems to help against 3 to 4 times the amount of friction as compared to just using ordinary engine oil ..... tapos it really looks effective .... at the least e in protecting your engine internals .

  15. Join Date
    Oct 2002
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    29,354
    #15
    Quote Originally Posted by tediber
    what about those engine oil additives . me nakita ako ni d demonstrate sa DIY greenhills UNIQ ang brand and it seems to help against 3 to 4 times the amount of friction as compared to just using ordinary engine oil ..... tapos it really looks effective .... at the least e in protecting your engine internals .

    Most engine oil additives do not do anything for the engine. A lot of them even separate and settle on the bottom when left to stand for a while.

    try reading these:
    http://www.fuelsaving.info/oil.htm
    http://skepdic.com/slick50.html
    http://www.carbibles.com/engineoil_bible.html

  16. Join Date
    Aug 2004
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    22,702
    #16
    Better to put better oil in, in the first place, like Helix Ultra or Mobil 1 Fully Synthetic, as they do the same thing. 4 liters of good stuff is a lot better than 4 liters of bad stuff + 1 can of additive.

    Ang pagbalik ng comeback...

  17. Join Date
    Aug 2004
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    #17
    Malaki ba talaga ang diff in fuel consumption between synthetic and mineral oil?

  18. Join Date
    Oct 2002
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    29,354
    #18
    Quote Originally Posted by SeminaristaKuno
    Malaki ba talaga ang diff in fuel consumption between synthetic and mineral oil?
    based on my wife's car... no. Driving habits play a bigger role (in fuel milage) than the type of motor oil you have in your engine.

  19. Join Date
    Aug 2004
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    22,702
    #19
    Typically, whatever gas you save by using synthetic oil is outweighed by the price of the oil. It'll have a little more effect on power, but you usually won't feel the difference.

    Ang pagbalik ng comeback...

  20. Join Date
    Aug 2004
    Posts
    6,234
    #20
    Thanks guys. Even if the recommended change intervals for synthetic is twice that of mineral, I still end up losing money in the long run since synthetic more often than not costs 4 times more than mineral.

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Guide to Fuel Saving Gadgets