[Beatrice]

I dont kno if this really affects anything but is it good for the car if
you drive around with the overdrive off. i had a friend who says it doesnt but i want another opinion....a better opinion.

 

[focusin]

LOL

If you are gonna be going 55 or less (city driving) there is no problem with it but for hightway just leave it on.

 

[f00t]

presuming that you have an atx, overdrive just keeps the car from shifting into 4th gear. it wouldnt make any difference in city driving, like fofusin said, but once your on the highway turning overdrive on gets better gas milage (computer searches for gear with best gas milage)