In article ,
"Capt. Geoffrey Thorpe" The Sea Hawk at wow way d0t com wrote:

"john smith" wrote in message
...
I've got a few gallons of used oil in the hangar in buckets since I
don't drink enough milk to put it all out for recycling. One of
these days I need to schlep it over to the big oil recycling tank
at a nearby airport.

If those are polypropylene milk jugs, you don't want to leave them
sitting very long. Polypropylene absorbs oil and will disintegrate if
left in contact with each other. Don't leave the jugs on the hangar
floor unless you want to clean a gooey mess. Is your hangar floor
epoxied?

You've had this happen, or you "heard about it"?

I have it happen... repeatedly!
After draining my oil, I inevitably leave it sit instead of taking it to
a drop off site right away.
I then have to scoop it into multiple polyethelynene trash bags and
scoure the congrete to get as much of the oil out of it as possible.
As we speak, I have two jugs from last summer still sitting here taking
up space.