Hmmmm ok i c, so i guess you could say its acceleration at the expense of top speed in a way, so for daily driving i guess it shouldn't say O/D Off on the dashboard?

02SERious wrote:

i would leave it on and let the car decide when it wants to go into o/d. It will basically help you maintain better fuel economy because the engine doesn't have to work as hard when cruising.

By leaving it on, you mean the O/D Off indicator light?

leave it pressed in the on position... there shoudn't be a light

Well for a majority of the time its always pressed on so where the indictor light does not show, and the car seems to drive fine, just when the O/D Off light is on it accelerates like a mutha n brakes harder too.

We were actually talking about this in the chat last week. Specially with a CVT it was perplexing exactly what it does.

Yes, I too play around with it. It does provide increased accel. up to a point, it definitely puts more torque to the tires, but then it craps out up past 100. If I were to race, I'd wait till 40 to pop it on cause it seems to kick in from a stop at that point anyway, and then take the added acceleration to a point, then turn it off which will initialize the final "gear/ratio" and push it to top speed. It seems pretty effective, definitely a nice tool, and it engine brakes like a mother though. That is my final analysis on the O/D on this auto.

having the O/D off on just about any auto will basically let it shift only as high as  1:1 ratio. just like if you were to put the gear select in '2', it would only let you go as high as 2nd gear. as far as CVT, the TCM has preset ratios for each manually selected gear.

haha.... yes, the OD button is only on automatics... in a manual, 5th and 6th are your overdrive gears...