It's also a bit cheaper, at least at all the Walmart locations in and around Milwaukee.
Originally Posted By: Touring5
I will definitely have to look next time - I have never seen that on any of the 3 local WM's. But, I only recently depleted my stock of M1 and haven't looked for the Castrol product any time recently.
A look at the WM website indicates it is now available locally. I hope so, a lot of the times that people have mentioned seeing various oils at WM, proved not to be the case locally.