With the current price of crude, it's doubtful that will last. I feel like prices will be dropping and coupons/rebates will be coming soon. Don't stock up now unless it seems really cheap.
M1 in all flavors went up at my local WM; Castrol Edge Titanium dropped to about the same price as QSUD. If that holds, the Castrol's going in my wife's Accord next OCI.