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    What is the purpose of overdrive ?

    +1  Views: 623 Answers: 2 Posted: 14 years ago

    2 Answers

    To allow an automobile to cruise at sustained speed with reduced engine RPM, leading to better fuel economy, lower noise and lower wear.

    HI  I ASSUME YOU ARE REFERRING TO A VEHICALE GEAR BOX IN WHICH CASE OVERDRIVE ARE EXTRA GEARS WHICH ALTER THE RATIOS ENGINE REVS TO SPEED THIS GIVES MORE SPEED FOR LESS REVS OR MORE MPG AS THE ENGINE IS WORKING SLOWER FOR A GIVEN SPEED



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