I agree with MGregoir, I have understood the Walmart T2K syn oils to be Petro Canada, The T2K conventional oils are recycled to best of my knowledge too.
Funny, I asked the same question on Walmart oil around 8 years ago, this is how I found BITOG when trying to find out what was in T2K bottles, this is one topic that will never die.
To note bwco, if you live in Alberta or Sask you can get 0-30 or 0-40 XD3 in Polar Plus 5 litre jugs for very reasonable price per litre, close to your T2K pricing, if you live anywhere else then good luck.
Cyprs