I'm starting to get desperate here. I use this stuff in all my vehicles, including an '05 Audi S4. It drinks down 12 quarts per oil change. Up till now I've been getting it in 5 quart jugs at Wal-Mart for $19.88 ... Recently I noticed that the shelves were looking a little bare, but usually I'd snag the last couple that I needed every time I went there. More recently my friends, all of whom I've got hooked on this particular oil type .. started telling me that they can't find it at such and such particular wal-mart. Most recently, they told me that they couldn't find it at ANY. This weekend I drove around. 4 different wal-marts- there isn't even a shelf tag for it anymore!!! Not the 5 quart jugs, not the single quart containers. Not in cases. Nothing. Zilch. I can't find it anywhere online either. Not for less than $8 a quart that is. Help? Anyone know how it will compare to Shell Rotella synthetic? I can get 1 gallon of that for $3.66 at wal-mart still. Whatever I get, next time I get it- I'm breaking out the 30 gallon race-gas drum I've got laying around that's nice and clean inside. Gonna hoard me some oil!!!