On my 01 Cummins I ran a piece of rubber hose down to behind the front axle. Problem solved.When modern diesels started having to capture crankcase "emissions" we had a lot of issues with turbo seals, and oil cooking on the impeller wheels. Then they started using oil mist separators. Some were good for life some needed changed out every so often. They helped a decent amount. Heck the newer cummins even had a sensor built into then to tell you when they need changed. The simple solution was to run a catch can and block off the port to the manifold. No more issues after that.
I wonder if that would be something that could be done and not fowl up the ecm...
On a fresh oil change of Rotella T the smell was awesome!