91 6.2 in a chevy g20 van blew oil...now what

[smonk]

first post...

Hi Everyone!

We are driving a 1991 Chevy G30(?) that was done up to be a conversion van (it was done as new).

The lovely 6.2 l diesel engine runs great but...

1500 miles from home....

Oil was low so I put in a quart, still low, put in another...

Now it was just at the top line.

Drove a few hundred miles with no problem...parked it for a week.

Then drove up over a pass (a low one, 3500 ft but pretty steep at points) and blew oil all over the bottom and dusted the rear of the van with oil. The drip points on the bottom, exhaust hangers had drips, drive shaft a has a sheen on it etc. But when parked no new oil seems to be dripping.

And its only down to half way on the dipstick?

As long as we top it off with oil if it continues to lose it are we cool?

its a bit of a drive home (1500 miles).

It starts right up and great and strong.
No noticeable smoke (this van rarely ever puts out smoke even under power).
Should I get it to a shop right away?

Or can we drive it and pay attention to the levels.

(cash is not really available at present so I lean towards...keep an eye on it
and assume I over filled it somehow and it blew by some seal but is okay now.

Opinions?

Nat