I was reading somewhere I forgot(stupid of me) It said that it causes damage if you drive with O/D on all the time. When driving local roads should I take O/D off and switch back on when going highway? Can having O/D on all the time really damage my tranny?

 

Overdrive is for cruising at highway speed, not traffic filled city driving. Wether or not damage occurs is beyond me, but I would not doubt it being detrimental to the tranny.

 

The O/D was designed to be used permanently (ON that is), O/D can be switched "OFF" to suit your driving style or conditions, neither condition should present any issues.

 

I just looked it up to see what they had to say in the owner's manual. Apparently it's better to keep the overdrive on. Here's exactly what it said:
"Set the overdrive switch to the ON position:
Always set the overdrive switch to the ON position to improve fuel economy and quiet driving."
If I were to trust anyone on this subject, it would certainly be the company that made the car
-Johnny

 

Keeping overdrive off doesn't damage anything per se, but OD off does put more wear on the drivetrain by forcing the crank to spin faster. I only turn it off temporarily when climb long, steep hills.

 

thank you for the info. I'm at ease again