Negatives to gear oil in motor oil?

[Chamberpains]

This is one of the dumbest posts I've seen for awhile. Here's why.....

Why did you do it if you didn't understand what you were doing? What ever the answer is to that question It should bother you and you should never allow it to happen again.

And to answer your question, it's fine. But if your worried you should take some oil samples and see if it's doing any harm.