Went to WalMart to get another gallon of RedCap yesterday and except for the 6 pack cases they were out. Not one single quart or gallon container on the shelf. Looks like the replacement is a GoldCap model under the 'extended performance' brand. Still fully synthetic and all but also slightly more expensive. I just browsed the Mobil website and found that they don't even list RedCap anymore. They still have standard sythetic oils but none of them are 15-50. The only way to find 15-50 is to look under the extended performance brand. Makes me think they are in the midst of phasing out the best oil ever and that's why WalMart was left with empty shelves. Does anybody else know anything about this or come across the same problem?