This thread stirred a memory.
Dad serviced our cars.. he used the waste engine oil to spray inside every box section he could find and also the inside of the doors.
The car dripped oil for about a month... but as he said, it was better than putting the oil down the road drain....
Happy days...
Peter,
Happy days are still here in Yorkshire, I have just serviced Jill's little Suzuki and painted the old engine oil on to any surface rust on the underside. £20 in materials for a full service and rustproofing, these are the days....