Yessir, that smell stays around for years.
I had been out of the oil patch for about three years when I came across an old pair of coveralls I wore regularly. They had been duely washed before being packed away. Three years later, not only the coveralls but everything in the box reeked of heavy oil. Fortunately there wasn't anything I really needed to keep in there, so I tossed the lot.
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72
'02 CLK320 Cabriolet - wifey's mid-life crisis
2012 VW Jetta Sportwagon TDI...at least its a diesel
Non illegitemae carborundum.