Went to a Costco warehouse in the city, and was having a look at the prices in their lube center: 5W or 10W-30 GTX oil change, $21.99 (great price); 5W-20 GTX oil change, $22.99 (again, great price); and Castrol Syntec 5W-50 oil change, $38.99. Good price, but whats with the grade?
After, I looked at the oil selection in the store, and it was like in the lube center - for synthetic, they only sell cases of Syntec 5W-50, and they had LOTS of them. Why would a store like this base its synthetic oil sales on an obscure and basically unecessay grade like this? I can understand they are trying to sell cheap products, so if Castrol isn't selling a lot of 5W-50, they offer it to them to sell cheap.
But it brings up another question: if Castrol is having trouble selling the 5w-50 grade, why make so much of it? If most people in NA look in their owners manuals, or ask about oil grades, they are told 5 or 10W-30. No-one would usually recommend 5W-50, so why would a store not at least offer some of these more popular grades? Just seems like a pointless waste of shelf space......