Hey. If you're in Canada, Pennzoil has all of their high end synthetic oils in sale from 50-60% off at Canadian Tire. I got 3 5 L jugs of ultra platinum for 23ish. I buy there and use them for 4-5 oil changes.
Pennzoil also has a mail in rebate for $10 off of all 5 L synthetics, so once you get that, it ends up being $13 a jug. Unbeatable. Even if you have to go for the one without as steep of a discount, still the best price you'll find anywhere.
Sale ends tomorrow, and it's getting a bit picked over, but I thought I'd let you guys know.