I have been using the 5W-30 EP in my cars, and had been using the 5 quart container from Wal-Mart. I normally keep a quantity in stock "for the next oil change."
I'd been careless, went down to zero stock, so went out to buy this am. At two Wal-Marts nothing. Had to go to four different other auto stores to round up seven quarts.
The other viscosities appeared to be in stock.
Anything wierd going on with 5W-30 EP??