Chainsaw Repair

Between what's sold in Canada and the US it's apples and oranges.
Stihl Canada has Castrol blend their mixes, in the US a company in Louisiana blends theirs.
Husqvarna had XP mix sold in Canada imported from Sweden , Husqvarna USA blended in the SE states.

This Castrol Super 2 Stroke is still sold at Canadian Tire. What I used from 1974 to about 1980 when Stihl had it rebadged as the orange cap Premium.
I prefer to use Stihl Ultra full synthetic at 40:1 Husqvarna XP mix is my 2nd choice.