You need a clean tank, nothing special. As a side note I got away from bulk and shop for sales and stock up on buckets. I bought a barrel of gear lube because I got a super deal, got a couple big trucks used changes and still got 1/2 left.
I got off barrels, they were a problem and the small difference in price is worth the packaging and I never had much better than a farmer system anyway, use also went down over the years.
There are places a barrel is easy, easy to pump in to a pour container.