Originally Posted By: Patman
I wish we still had GC 0w30 here (and for the $5 per liter I used to find it at back then!) as this would be my top choice for her BMW!
As much as it pains me, check CT and Partsource on that product, too. NAPA Canada is, again, another option. Of course, the 1 L pricing is always the barrier. Getting a good relationship with an independent parts store that sells Castrol is another option, particularly for products that are getting harder to find or that are less frequently on sale.
Quattro Pete: All our Walmarts used to carry the Castrol 0w-30 A3/B4. Now, it's a bit hit and miss. In fact, your link shows it's not available at any of the local Walmarts currently, but if I were needing the product, I'd verify in person, because I don't know how accurate their site is on stock. Canadian Tire's site seems to have correct inventory numbers, with online stock matching their computer, but whether someone stocked the shelves is another matter, too.