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How can one effectively use tachometer in a car for efficient driving?

By Jo Jack on Apr 5, 2009


  • it shows the over race of engine,so it helps for a smooth drive & high fuel efficiency.
    Answer by Rajverma on Apr 6, 2009

  • Expert Hi,
    With tacho meter you can know best speed and by maintaining constant rpm efficency can be improved.
    Answer by Shiva Shankar on Apr 7, 2009

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