I have used their Duron group III synthetic 5w40 with great results in my VW diesel. My bro-in-law uses thir oil in his ATVs as they are wet clutch approved. Its good oil, at a fairly reasonable price.
I have a Petro Can lubricant handbook here with me, what line of oil would you like to know about? Their supreme 5w-20, 5w-30 and 10w-30 are the bulk oil at honda, hyundai, kia and mazda dealerships in canada.
I know when my stash of UFA Polar Plus (XD3)0w-30 runs out I am gonna try out their DURON XL synthetic blend 0w-30. It looks to be a very good cold weather oil.
Both the Supreme and the Supreme Synthetic are very good oils from talking to some, they would chose Supreme (dino) over Esso Extra aka Mobil Super 1000 any day. Plus you would get a much better price from a bulk dealer than paying Canadian Tire sale price for a better oil.