When you say the engine oil is half gone, do you mean half way down from
> "full" to "low"?

Yes

The dip stick only tells you when you are approx 1 quart low.  It does not tell you the total volume, or lack thereof, of oil in the engine.  It's there to tell you when you need to "top off" so you don't get too low.

On 04/09/16, Michael wrote:

About the engine oil, I am by no means a mechanic it just seemed strange that it was all the way full and run for about ten minutes and then was half gone and now the diff is basically full.

So I thought it might be possible. Sounds like it isn't. :/