I'n my Moms 98 Monte Carlo I noticed it had option of O around the D as a drive option. With a little Imagination I presumed it was the abbreviated term "OverDrive" Now that I am looking for one of my own, I wonder. What does it Specifically Do? I've only seen that option on Monte Carlos'.

 

I think it just has different shift points for better mileage mabye?

 

Are you saying you only see the "O/D" on Monte Carlo's? I'm kinda confused by yer post, mine goes "1, 2, D, O/D"

 

it's a 4 speed automatic... D is suposted to used in city driving and OD more for highway every one just trows it in OD but if i'm going under 45 i keep it in D to save on the trany alittle

 

basicly i think the just added OD becuase they added a fourth gear to transmitions and wanted to make it seem that much more special and now it has just hung around

 

Thanks that clarifies it a little.

But yes, I've never seen the O/D function on any other car besides the Monte Model.

 

Overdrive forces the car to shift into the highest gear possible as early as possible to keep the RPMs low and keep your gas mileage high.

 

Most automatics now days have O/D doesnt matter whether they are 4 speed or 6 speeds, the highest gear is usually always O/D in new cars...

Some cars like my Monte for example may not call it O/D on the gear selector, but it still is. Mine says D, 3, 2, 1...In my case D is O/D.