Holy guacamole!! Sounds like you'd be better off getting some Amsoil or Schaeffer through the mail!
Canada is like the US, every second shade tree mechanic is an Amsol dealer, plus you can find it at retailers.
Which is a good thing, because ordering anything from the US "through the mail" is hideously expensive. USPO "flat rate box" to Canada is $US50, plus Canada Post's $C 8.00 brokerage fee.
If you think UPS or FedEx is cheaper, think again. Slightly lower shipping cost (maybe $US 35), but add $50 for brokerage and other fees when they show up at your door (including a fee for collecting the fees). There is no way you can save money, even if the oil was free, by buying from a US vendor.
Now, if you bought it from China, whose government subsidizes all foreign postal costs, you could get it delivered for $10, and there will be no brokerage fees, because every single shipment I've ever received from China (and that would be nearing 100, since I do a lot of electronics work), regardless of how legitimate the vendor might be, and without prompting on your part, will declare the item a "Gift" and lie about the value. Every. Single. One.
It's actually a problem, although it's never happened to me, but since items below $20 are exempt and carry no additional costs, lying on the customs declaration could result in seizure of the item. But even if you ask, they will ignore you and lie on the form. 100% of the time, Guaranteed.
