X ummmm... 20 or 30. I also stock up as much as i can when there's a great sale going on. Why wouldn't you? Do you enjoy paying retail prices for the same oil that we all bought a month ago @ 60% off?
You're going to use that oil at one time or another so might as well buy it when it's cheap.
You're going to use that oil at one time or another so might as well buy it when it's cheap.