 Now for December 28th, Castrol Edge and Edge High Mileage Motor Oil are on rollback at Walmart. Claim based on sequence dine test under high-low conditions versus API SP test limits. Hi, it's Joe. Do you know how amazing blueberries are for you? Not only are they low in calories and high in nutrients, but they help improve memory and reduce body stress. Right now, they're on sale at Shaw's and Star Market. July is National Blueberry Month. Come celebrate by picking up two pints of blueberries for only $5.