[Walmart] Mobil 1 5W20 4L $14.88 after SCOP Very YMMV
I brought the cashier a pic of the shelf price tag and she had no problem applying SCOP.
Please note that there are different SKU's for Mobil1 5W20 and I suspect this SKU is older inventory.
This was at the Walmart store in Georgetown Ontario today and as at 1:30PM I found 3 more jugs left with this SKU - one all by itself near where the rest of the oil is on display (that's where the $24.88shelf price tag is) and two on an end cap.
I suspect this is very YMMV.