Overdrive questions

[Powerzen2002]

Hey, i have a 90 240sx and was wondering how bad it is to leave the O/D off always when street drive'in and on with highway.

Do NOT using overdrive hurt my engine or tranny in anyway?

Thanks just a couple of stupid questions.

Thanks

[Kareem]

I think it just depends on what RPMs you're driving at. Personally if I was driving an automatic I'd leave it in overdrive on the highway to keep the revs down.

[kandyflip445]

And to keep your fuel mileage good.

[mrdirty]

Originally posted by Powerzen2002
Do NOT using overdrive hurt my engine or tranny in anyway?


Not really, overdrive shifts u into a higher gear to reduce fuel consumption....so disengaging it will have the same effects as shifting a manual at higher rpm.