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What is the meaning of Overdrive (O/D)?

• freakass

  5 Apr 09, 15:55

  Hi guys,

  Does anyone know the meaning of the overdrive (O/D) function of a car?

  Do I leave it On or Off?

• lianamaster

  5 Apr 09, 16:33

  Hmm... more info @ http://en.wikipedia.org/wiki/Overdrive_(mechanics)

• sinicker

  5 Apr 09, 20:15

  over-drive means stop after stop line.
  
  hence, you OVER drive lor.

• nOrmalbOi

  5 Apr 09, 22:25

  basically it means a higher gear where you can cruise at a higher speed but at a lower engine speed.

• veron soh

  6 Apr 09, 20:01

  Originally posted by freakass:

  Hi guys,

  Does anyone know the meaning of the overdrive (O/D) function of a car?

  Do I leave it On or Off?

  Leave it on,usually cars with O/D switch is those older Japanese cars with 4 speed Auto,if O/D is off,it means it will only upshift to 3rd gear..