Sorry guys, been away for a couple days. No there's no Costco around here nor O'Rielly's, nor Kragan's, just wally world (which I despise) and Tractor Supply. Actually the guy at the service station went to Tractor Supply to get some while I made a short trip to McDonald's for a salad. He had no luck, they were all sold out. None of this weight at WalMart either, just 10-30 and 10-40. And no, the owners manual does NOT give me the leeway to go to 10-30 in the summer, just 5-30 year 'round. I suppose I'll make the leap to Havoline, but still am reluctant. If the oils are the same there should be plenty of both around for sale. I am also not too hot on "reporting" this guy to Chevron. He said they are just slow getting that grade to him, so he's really tried. I just don't think Chevron wants to market that grade for some reason. At any rate I need to rethink the oil for this 5.3 Vortec after reading the post about the other GM standard concerning cold pumpability (GM-9426?). Would anyone care to suggest an oil that meets this standard that is NOT synthetic, and is as good as Chevron Supreme in a 5W-30 weight?