"john smith" wrote in message
...

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?

I save the heavier gallon jugs that the auto windshield washer/antifreeze
comes in. The squared jugs are the best I've found, but the round ones work
OK too. Possibly they are made from a slightly different plastic. I've
stored oil for more than a year w/o any leakage.

Gary Kasten