(1983 300D) 70mph + steep hill = leaking oil and odd smell

[Cinnamonandgravy]

So I might've been a dummy. Story time.

1983 300D. some assorted issues, and slight oil/coolant leaks, but otherwise solid. Recently changed the oil, maybe 3 weeks ago (Rotella 15W-40 - what I always use).

So I recently switched jobs, and my training was at a location ~30 miles from my house. Quickest route was via toll roads, and the toll roads round these parts are pleasant, very hilly drives. So I took the 300D for its first time on the toll road.

There are a few long, steep climbs, and the 300D was very happy to soldier up them at ~70mph. During the climbs, the engine temp never went over 85, and fairly quickly went back down to ~50-70 after climbing the hills (my normal temps). RPMs were low 3k's.

After getting home, I noticed a few oil drops going up the driveway. Looked under the car, and while the car normally leaks a bit of oil and drips from the regular places, it was clear oil was thrown over the undercarriage, and the car was consequently dripping from many new places.

I lift the hood and notice some oil thrown over the fuel injector pump, over 1 glow plug (the one closest to the front of the car), the oil dipstick handle, and noticed the oil dipstick tube was covered in a fair amount of oil, as well.

I think to myself, 'oh crap, maybe 70mph wasnt the smartest. hope i didnt rupture something and push out half the oil or more'.

Pull out the oil dipstick, and I find the oil level is now at the bottom notch (thank god). Just 3 weeks ago it was at the top notch. But I also notice an odd smell. Not quite burnt oil (I think), but I couldnt place my finger on it. Thought maybe coolant had mixed in, but the coolant levels looks normal enough.

Removed the oil cap to add fresh oil, and noticed a slight smell again.

This was ~4 hours ago. The car has since stop leaking oil from the new places. Starts up fine and runs well.

Any thoughts? I'll be taking the car on the same trip tomorrow, just at a slower pace, ha. The smell and it pushing out oil is scary though.