I don't where, but my oil drops when I drive it.. I laid under it for nearly a half hour and no leaks. I put cardboard under it and revved it, no leaks. I drive it around the block, about 3 miles, lots of hills, lots of turbo boosting, come home, down a pint. Any ideas?
#1 You are burning it in your cylinders due to bad or worn rings.
You should see this as a lot of blowby out the crank case breather or blue smoke even when not on the throttle.
#2 leaking oil past intake valve stems due to loose tolerance or bad valve stem seals or both.
That is a lot of oil to lose in 3 miles.
If it isn't leaking or going into the radiator via the oil cooler, it must be being burned up.
If it were a blown head gasket you would know it and most likely rather than burn oil it would be dead on one or more cylinders.
My 400 sbc uses 1 quart every 500 miles and that is considered quite high.
Culprit in my case; Sloppy valve stem guides/ clearance beyond what the stem seals can control.
Mine burns a lot of oil on a long downhill due to high vacuum in the intake.
Of course a diesel doesn't generate vacuum in the intake and in your case you even have pressure in your intake due to the turbo.
#3 Hey, could the turbo be leaking oil into your intake?
That would be another possibility.
In fact, in your case, this might be a very strong possibility because you mention "lots of boost".
Maybe pull and inspect that turbo.