I have a 92 accord LX sedan. The problem tha ti am having(I think) is that the car is not shifting into overdrive. It will sometimes but not all the time. Other than that the car is good. Anyone know anything that could be wrong?

Try changing the transmission fluid--I recommend full synthetic (e.g. Mobil 1 Multi-Vehicle Full Synthetic ATF). If the problem persists, I'd take it to Honda for servicing.

Should I use full synthetic if it has never been used? The car is a 92 and has 148,000 miles on it. It was serviced at the Dealer. I checked the fluid level and I think that it was a little more in it than what is supposed to be, but it is clean.

I would. Is the current fluid pink?